Critical revision of the genus eucalyptus Volume 6: Parts 51-60

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Critical revision of the genus eucalyptus 

Volume 6: Parts 51-60 

   Maiden, J. H. (Joseph Henry) (1859-1925)  



   University of Sydney Library  





   © University of Sydney Library. The texts and images are not to be used for 

commercial purposes without permission  

Source Text: 

   Prepared from the print edition of Parts 51-60 Critical revision of the genus 

eucalyptus, published by William Applegate Gullick Sydney 1924. 610pp.  




   All quotation marks are retained as data.  


   First Published: 1924  


583.42 Australian Etext Collections at botany prose nonfiction 1910-1939  




   Critical revision of the genus eucalyptus volume 6 (Government Botanist of New 

South Wales and Director of the Botanic Gardens, Sydney)  

“Ages are spent in collecting materials, ages more in separating and combining them. Even 

when a system has been formed, there is still something to add, to alter, or to reject. Every 

generation enjoys the use of a vast hoard bequeathed to it by antiquity, and transmits that 

hoard, augmented by fresh acquisitions, to future ages. In these pursuits, therefore, the first 

speculators lie under great disadvantages, and, even when they fail, are entitled to praise.” 

   Macaulay's “Essay on Milton” 


   William Applegate Gullick, Government Printer  


Part 51 

CCLXXXVII. E. Sheathiana Maiden. 

      In Journ. Roy. Soc. N. S. W., xlix, 312 (1915).  

   FOLLOWING is the original description :—  

   Arbuscula gracilis nunc 10 feet alta, erecta, cortice longis tenuibus lamellis 

secedente. Ramulis glaucis, plerumque subteretibus sed ultimus ramulis 

angulatiusculis. Foliis maturis obscuro-viridibus, rigidissimis petiolatis (petiolis 1–



5 cm.) lanceolatis, paullo falcatis usque ad 8 cm. longis et 2 vel 3 cm. altis. Venis 

lateralibus patentibus. Venis haud prominentibus. Foliis valde oleosis. Floribus 

plurimis. Umbellis usque ad 7 capitulo, pedunculis 1 cm. pedicellis dimidio 

aequilongis. Operculo fere hemisphaerico, umbonato, plus dimido cupula 

aequilongo. Cupula conoidea plerumque 2-angulata. Antheris amplis, paralleliter 

aperientibus, glandula dorsum fere adhaerente. Fructibus subcylindroideis, maturis 

non visis.  

   A specimine culta solum nota.  

   A slender young tree, 10 feet or more high, at the present time, erect in habit, the 

bark falling off in long thin flakes (ribbons).  

   Glaucous,  branchlets  generally round, though ultimate branchlets somewhat 


   Juvenile leaves.— Not available.  

   Mature leaves.— Dull green, of the same colour on both sides, rather rigid, 

petiolate (petioles 1–1


5 cm.), lanceolate, only slightly falcate, up to 8 cm. long and 

2 or 3 cm. broad. Lateral veins spreading, roughly parallel, disposed at an acute 

angle to the midrib. Venation not very prominent, the leaves covered with oil-dots, 

and evidently rich in oil.  

   Flowers.— Very floriferous, umbels leaf-opposed to the last leaf, the umbels up 

to seven in the head, with peduncles of 1 cm. and pedicels of half that length. The 

operculum pointed when half ripe, but when ripe nearly hemispherical and with an 

umbo, rather longer than half the length of the calyx tube, which is conoid, has 

(usually) two angles, and tapers into the distinct pedicel.  

   Filaments  pale  yellow  or  cream-coloured, which dry orange-red and exhibit a 

pretty contrast with the cream-coloured anthers. Anthers large, creamy-white, 

opening in parallel slits, the gland nearly filling up the back, and the filament 

attached almost at the base.  

   Fruits.—Subcylindroid, but not seen ripe. Thin, defined rim. The tips of the 

valves, now represented by a persistent style and unexpended stigma, will, when 

ripe, probably become awl-like and will protrude beyond the orifice, in this respect 

becoming reminiscent of E. oleosa.  

   I  name  this  plant  in  memory of Mr. Sheath, a first-class horticulturist, who was 

keen on the cultivation of native plants.  

   In April, 1917, I received spontaneously grown specimens from Dr. F. Stoward, 

who described it as “A Mallee, 15–20 feet high and 1 foot or more at some distance 

from the ground. Bark rough on old trees, smooth on saplings.”  


   Known only from a cultivated specimen in the King's Park, Perth, Western 

Australia. (The late Mr. J. Sheath, Superintendent up to 1913.) Mr. Sheath informed 

me that he received the seed from “the Eastern Gold-fields, near the South 

Australian border” (of Western Australia). He further informed me that it had been 

sent to him as E. erythronema. I have received additional specimens from the same 

plant from Mr. Sidney William Jackson, of Sydney, and from Dr. F. Stoward, 

Government Botanist of Western Australia, whose attention I had invited to the 

plant. (Original description.)  

   In April, 1917, I received flowering twigs, still without juvenile foliage and 

perfectly ripe fruit, from the Kunonoppin district, “grows on various classes of 

soil” (Dr. F. Stoward, No. 145). Kunonoppin is a railway station 174 miles from 

Perth in an easterly direction, on the Northam-Merredin railway line, and this will 

give a clue to the locality of the species. I trust that our Western Australian friends 

will soon be able to secure adequate material.  


   This species belongs to the Macrantheroe, of which there are many members, and, 

in the absence of ripe fruits, I hesitate to indicate any close affinities. I am very 

anxious to get seeds.  

CCLXXX VIII. E. striaticalyx W. V. Fitzgerald. 

      In Journ. W. A. Nat. Hist. Soc., i, 20 (May, 1904).  

   Following is the original description:—  

   Arborescent, attaining a height of 40–50 feet or more with a stem diameter of 11/2 

feet; bark dark grey, moderately thick, rough, persistent on the lower portion of the 

trunk, upwards thin and decorticating in small sheets, that on the cylindrical 

branches and branchlets whitish and smooth. Leaves alternate, conspicuously 

petiolate, ovate-lanceolate to lanceolate, straight or falcate, shortly acuminate, thick, 

almost coriaceous, 3–6 inches long, veins numerous, very fine, divergent, 

circumferential one close to the edge, dull-greyish on both sides. Peduncles axillary 

or lateral, solitary, or forming short terminal panicles through leaf-suppression, 

terete or hardly angular, erect or spreading, 1/2–3/4 inch long, each bearing an 

umbel 6–8 moderate-sized flowers. Calyx-tube turbinate, in bud above 3 lines long, 

smooth or scarcely striate, tapering into a short pedicel, lid hemispherical, 

terminating in a straight obtuse beak, broader than and as long as or longer than the 

tube, with 10–15 longitudinal raised lines; stamens pale-coloured, inflected in the 

bud; anthers broadly oblong, with parallel distinct cells. Ovary shortly conical in the 

centre. Fruit obovoid, about 5 lines long, 3–31/2 lines across, faintly and irregularly 

striate, slightly or not at all contracted at the summit, border thin, concave; valves 

usually 4, subulate, the points included. Seeds brown, irregular, without 

appendages, fertile ones 1 line long, 3/4 line broad, sterile, about as long as broad.  

   In the same Journal, iii (January, 1911), I wrote:—  

   I found this species at Milly's Soak, near Cue, one of the type localities, and 

following are the notes taken by me on the spot:  

   E. striaticalyx is far less numerous than E. microtheca, and is on the edge of the 

microtheca belt. Called “York Gum” by local people, but they are free-and-easy 

with their names for trees. It was plentiful on a donga. Stumps are now seen 12–18 

inches in diameter between Milly's Soak and Jack's Well, and it was formerly 

extensively cut for firewood, but the neighbourhood of Milly was made a recreation 

reserve and the remaining trees were saved.  

   Tree of 30–40 feet. Bark dark grey or blackish, flaky, thin, yellow inside, covering 

the whole of the trunk and part of the branches.  

   Timber very hard, pinky pale brown or pale brown when fresh. Rather erect in 

habit. Would be called a Black Box in Eastern Australia. Neither Mr. Fitzgerald nor 

I found flowers, but I collected timber and juvenile leaves, which he did not.  


   Milly's Soak, and about 4 miles east of Nannine, September,. 1903 (W. V. 

Fitzgerald). The localities are in the Murchison district of Western Australia.  

   So far as observed, the new plant is confined to calcareous areas, with a 

permanent supply of fresh water at shallow depths. It appears to reproduce readily 

from seeds, suckers freely, and is apparently a moderately fast grower. Roughly, it 

covers an area of 5 square miles at Milly's Soak, and about 4 square miles east of 

Nannine. Both areas have in years past been largely drawn on for use in the various 

mines, and for fuel, and are now practically denuded of all matured examples. In the 

first-named locality the species is associated with E. microtheca F.v.M., in places 

being almost superseded by that species. Near Nannine the accompanying congener 

consists of irregularly grown examples of E. rostrata Schlecht. The presence of 

these Eucalypts offers a pleasing variation to the monotony of the greyish-foliaged 

“Mulga” (Acaciae), which cover a vast proportion of these districts. It may be 

remarked that the so-called “White Gum” at Milly's Soak is the E. microtheca 

F.v.M., and the “Flooded Gum” east of Nannine is E. rostrata Schlecht, partly. 

(Original description.)  


   1. With E. foecunda Schauer.  

   The new species constitutes one of the “Flooded Gums,” or the “York Gum” of 

the Cue and Nannine mining districts. In cortical characters, the crooked nature of 

the trunk and in the wood is not very different from that of the true “York Gum” (E. 

foecunda Schauer, var. loxopheba), but the foliage, flowers, and fruit are very 

different. (Original description.)  

   2. With E. incrassata Labill.  

   In the latter characteristics (flowers and fruit) it more closely approximates E. 

incrassata Labill., and differs chiefly from that species in habit, bark, and in the 

calyx lid being broader than the tube and conspicuously ribbed. (Original 


   In the same Journal, iii (January, 1911), I wrote:—  

   In my opinion this is a variety of E. incrassata. The juvenile leaves are as nearly 

as possible the same as those of var. dumosa collected by me at Dongarra. The 

Dongarra trees are large, so are those of the same species at Kangaroo Island, South 

Australia. The Milly's Soak trees are exceptionally large for E. incrassata, so are 

those of the two localities I have quoted. The timbers of the two species appear to be 


   The fruits are those of E. incrassata, while the ribs of the opercula are 

characteristic of those of E. incrassata.  

   I shall be glad if any correspondent can favour me with flowers, but at present I 

see no grounds for separating it from the protean and widely-diffused E. incrassata 


   3. With E. dumosa A. Cunn.  

   In the last paragraph, under E. incrassata, I really referred to E. dumosa, for many 

years, by Bentham and others, included in E. incrassata. The two species are very 

close (see Part IV, p. 97, Plate 16, and Part XXXVIII, p. 223), and some botanists 

may be unwilling to separate them. The buds and fruits of E. striaticalyx are larger, 

and the pedicels more distinct, but I cannot find that the leaves and floral organs are 

specifically different from those of E. dumosa. I give it the benefit of the doubt at 

present, because of its geographical distribution.  

CCLXXXIX. E. taeniola Baker and Smith. 

      In Papers and Proc. Roy. Soc., Tasmania, 198 (1912), with a plate.  

   FOLLOWING is the original description :—  

   Arbor mediocra, altudinem 40–50 pedes attinens; ramusculi teretes, graciles. 

Cortex trunci in laminis duris, similiter “Peppermint” generis. Folia alternata, semi-

coriacea, angusta lanceolata v. lineata (taeniola) 12 uncias longa, 1/2 uncia lata; 

venis parum insignis acutis obliquis, vena peripherica a folii margine conspicue 

remora. Pedunculis axillaris, solitariis 5–9 floris pedicellis vix ullis. Calyx turbinatis 

operculum hemisphericum v. conicum. Fructus turbinatus, margo contracto, 

concavo, 1/2 uncia longa, 1/4 uncli lata, valvae prorsus inclusae.  

   A tree about 40 to 50 feet high and 2 feet in diameter, with a “Peppermint” bark. 

“Sucker” leaves linear-lanceolate, straight, 4 to 6 inches long, 1/2 inch wide, 

opposite or alternate. Normal leaves narrow-linear to linear, lanceolate, up to nearly 

1 foot long, thin, venation not pronounced, but best seen in larger leaves, lateral 

veins very oblique, intramarginal vein removed from the edge. Peduncles axillary, 

but (through the falling off of the leaves) the inflorescence sometimes appears 

paniculate. Flowers few in the head. Calyx pyriform; operculum small, compressed, 

slightly pointed.  

   Fruits pear-shaped, 1/2 inch long and 1/4 inch wide, tapering into a short pedicel, 

rim countersunk, valves not exserted.  


   The specimens upon which this species is founded were obtained by Mr. L. G. 

Irby, at St. Mary's Pass, Tasmania.  


   1 and 2. With E. Sieberiana F.v.M., and E. amygdalina Labill.  

   In its native habitat—  

   It was found growing amongst trees of E. virgata and E. amygdalina Labill., and 

from which he (Mr. Irby) states the species is easily differentiated in the field from 

its congeners. The bark is finer checked than E. virgata, running more closely to the 

“Peppermint” bark in texture than the latter species.  

   The leaves, both “sucker” and normal, are much narrower than those of E. virgata, 

and of a different appearance altogether. They are long and linear, varying greatly in 

length on the same tree, being from 4 to 11 inches long—7 to 8 inches long being 

common. It is on the ribbony appearance of the leaves that the specific name is 


   The fruits, however, are almost identical with those of E. virgata, and yet the 

general appearance of the tree is more like that of E. amygdalina. (L. G. Irby.)  

   “These results indicate that this form is somewhat closely associated with the 

Tasmanian E. virgata. The oil from the latter, however, contained more eucalyptol 

and more eudesmol, while that of E. taeniola had more phellandrene, as indicated 

by the rotation figures.” (Original description.)  

   In the above passages, for E. virgata Sieb. (a shrubby tree as its name denotes), 

read E. Sieberiana. For an account of the confusion that has grown up between E. 

virgata and E. Sieberiana see Part XXXIX, p. 283. E. virgata is not found in 

Tasmania. E. taeniola seems sufficiently separated from E. Sieberiana by its fibrous 

or “peppermint” bark, and from E. amygdalina by its long linear juvenile leaves.  

   The following note by L. Rodway, the Government Botanist of Tasmania, 

expresses a view which will doubtless be borne in mind :—  

   In the neighbourhood of St. Mary's Pass, Mr. Irby observed in the forest of mixed 

Mountain Ash and Black Peppermint (E. Sieberiana and E. amygdalina—J.H.M.) a 

few trees which differed from either, but were called Black Peppermint by local 

inhabitants. The trees were medium-sized, with a rough, persistent, semi-fibrous 

bark. The juvenile leaves were narrow, opposite, and sessile, very like those of 

Black Peppermint. The mature leaves also resembled the leaves of that species, only 

tended to grow much longer. Flowers and fruit smaller than, but much like those of 

Mountain Ash. Fruit is pear-shaped, much restricted at the orifice, rim narrow, 

valves deeply sunk; stalks slightly flattened. R. T. Baker described it as a new 

species under the name of E. toeniola, but it seems probable it is a hybrid between 

Black Peppermint and Mountain Ash. (Proc. Roy. Soc. Tas., 12, 1917.)  

LXXXII. E. Stricklandi Maiden. 

   IN the original description, copied at Part XVI, p. 202, this little-known species is 

presumed to be a shrub. The following statement by Mr. C. E. Lane-Poole, 

Conservator of Forests of Western Australia, shows that it is really a medium-sized 


   It does not grow to a large size. In fact, the one photographed is the largest that I 

was able to find (the photograph, which will be reproduced later, shows an erect tree 

perhaps 50 feet in height, and with a stem diameter of, say, 2 feet J.H.M.). It has the 

largest fruit of any of the tree-Eucalypts as opposed to the Mallees, the fruit being as 

large as, if not larger than, the Tuart, E. gomphocephala, of the South-West. The 

bark adheres for 2 or 3 feet from the ground. The rest of the stem is, however, 

perfectly clean. The leaves are more coriaceous than any of the other Eucalypts, the 

nearest being E. torquata (Mr. Lane-Poole is of course speaking of the local or Gold 

Fields Eucalypts, J.H.M.), though, owing to the decorticating bark, there is no 

difficulty in distinguishing between the two, even in the distance. It is used for fuel, 

and is known as Blackbutt; indeed, the cutters see no difference between it and E. 

Le Souefii.  

   The rough part of the bark, at the butt, is hard and flaky. The timber is of a rich 

deep brown colour, with a touch of red in it; it is very hard and interlocked, and 

there is no doubt it is of a high class. It seems a pity that practically its only use at 

present is for fuel.  


   It is confined to Western Australia, and the only previous locality known is 

Hampton Plains, near Coolgardie. Mr. C. E. Lane-Poole sends it from 4 miles south 

of Higginsville, on the Norseman road. It is fairly common along the Norseman 


   I have received from Prof. T. G. B. Osborn, of Adelaide, a specimen labelled :—  

   1. Eucalyptus obcordata Turcz. Elder Exploring Expedition, 40 miles south-west 

of Fraser Range, Western Australia. (R. Helms, 5th November, 1891.) This is 

evidently referred to by Mueller and Tate in Journ. Roy. Soc. S.A., xvi, 358.  

   In the Journal of the Expedition, p. 128, I find under 4th (not 5th) November—  

    . . . when we came to a big patch of splendid Blackbutt timber the natives turned 

off for this rock-hole. The Blackbutt timber is of the Eucalyptus species; it is a 

useful timber, splitting easily. The natives make their long spears out of this wood.  

   On the following day the Journal speaks of a “Morrell Gum-tree.” The latitude for 

the two days was given at 31° 35' 45" and 26' 20", and the locality about 100 miles 

south-east of Coolgardie.  

   E. Stricklandi could readily be taken for a Morrell.  

   2. In Part XXXV, p. 122, and XVI, p. 204, of this work, I refer to a specimen 

labelled similarly to No. 1 as belonging to E. Campaspe Moore. Both specimens 

were collected on the same date and at the same place.  

CCXC. E. unialata Baker and Smith. 

      In Papers and Proc. Roy. Soc., Tasmania, 177, 1912.  

   FOLLOWING is the original description :—  

   Arbor altitudineum 40 pedes attinens, ramulis validis superne quadrangulatis. 

Folia opposita sessile oval v. cordata acuminata 2–3 uncias longa, v. falcato-

lanceolata 9 inches longa, 1 inch lata, obscure pennivena, vena peripherica a 

margina remotiuscula. Pedunculi axillari, brevi 3 uncias longi, complanati 3 flori; 

calyx tubus compressus circiter 2 uncias longus cum operculo conico obtuso.  

   Fructus hemispherici, vitrei unialata, 6 inches longi; margo crassus valva exserta.  

   Systematic Description.—A tree attaining a height of 30 to 40 feet and a 

diameter of 12 inches, with a flaky bark at the butt. Sucker leaves, sessile, opposite, 

oval at the first, the lower pairs nearly always so, up to 2 inches long and 1 inch 

wide, then cordate, acuminate, up to 3 inches long and 11/2 inch wide. Normal 

leaves lanceolate, falcate, up to 9 inches long and 1 inch wide, subcoriaceous, 

occasionally shining on the upper surface. Venation distinct, lateral veins 

moderately oblique, intramarginal vein removed from the edge. Branchlets in sucker 

growth terete, but angular at first on the others. Peduncles axillary, flattened, short, 

thick, 1/4 inch long, three sessile flowered. Calyx compressed, angular, under 1/2 

inch long; operculum conical.  

   Fruit hemispherical, 1/2 inch in diameter, shining, rim thickened, convex with a 

very narrow groove below it, valves well exserted.  

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