338 THE FLORA OF THE NORTHERN TERRITORY. 



Mueller's figure of A. pityoides in " The Iconography of Australian 

 Acacias "(which, as usual, does not state the history or locality of the specimen 

 figured), shows the calyx " deeply lobed" as Bentham describes, and I have not 

 come across quite such a deeply-lobed calyx in any plant attributable to A. 

 pityoides, although I have seen (in other specimens) the calyx somewhat less 

 oblong, and more deeply lobed than is shown in No. 260. 



The flowers are glabrous, and the pistil is hard, brown and hoary. The 

 bract broadens and thickens at the top, and is glabrous. The phyllodes are 

 finely striate under the lens, often uniformly shghtly scabrous and wrinkled at 

 the base. Sometimes different parts of the plant are viscid or resinous. 



The figure of the funicle of A. pityoides, F. v. M., in the Iconography is 

 quite straight (perhaps the artist has been a little diagrammatic). In No. 260 

 the funicle is much twisted near the seed, even in a very young state. 



No. 260 agrees also with : — 



(a) A specimen in fruit collected at Tanami, Northern Territory, by Dr. 

 H. I. Jensen, " small tree, height 6 feet, dense scrubs" (C. E. F. Allen's 

 No. 210). 



(6) " Fairly tall plants of 4-8 feet, much branched, and with no definite 

 stem, all issuing from a common stool, and also suckering. Usually growing in 

 loose sandy places." Jericho, Queensland (J. L. Boorman). 



(c) " 8-10 feet, bark fairly smooth. Shrub spreads into 6 or 8 stems from 

 one root. Spike pale yellow, aril yellowish-red." On sandy tableland at 

 1400 feet, Prairie to Baronta, 30 miles east of Hughenden, Queensland (R. H. 

 C^ambage, No. 3962). 



26. A. tanumbirinense, n. sp. — " No. 802. Sandstone country near 

 Tanumbirini,N.T., 26th March, 1912." In flower only. 



Fnitex glaber, surculis teneiis resinosis, ramulis angulatis, phjllodiis angueto-Kiie- 

 aribus, ca. 15 cm. longis, .4-5 mm. raaxima latitudine. Nervo medio prominente, nervis 

 numerosis tenuibus parallelibus, 1-2 aliquando ceteribus crassioribus. Floribus 5 meris, 

 spicis gracilibus non densissimus ad 4 cm. longis, pedunculis 5 mm .Sepalis basi partitis, 

 tenuissimis, villosis, corolla ca,-diinido aequilongis. Fetalis basi comiatis, poculo similibus 

 formatis, pauUo villosis, tenuissimis. Pistillo villoso, Leguminibus seminibusque non 

 visis. A. drepanocarpae, affinis videtur. 



A glabrous shrub, the young shoots resinous, branchlets angular. 



Phyllodia narrow, linear, straight or slightly curved, terminating in a 

 blunt, sometimes curved point, tapering -^ery gradually to both ends ; 

 gland near base of phyUode on the inner margin. About 15 cm. (6 inches) 

 long, and 4-5 mm. in greatest width. Central nerve prominent with num.erous 

 fine parallel nerves of which one or two are sometimes thicker than the others. 



Rhachis hoary, resinous. 



Flowers 5-merous in .spikes which are slender and not very deii.se, up to 

 4 cm. long, peduncle of about 5 mm. 



Calyx, the sepals divided to the base, very thin, almost without central 

 nerve ; hairy, about half the length of the corolla. 



Petals divided half way down, cup shaped (that is to say relatively broad), 

 glabrous, except for a few hairs, very thin. 



Pistil hairy. 



Pods and seeds not seen. 



Tliis species belongs to the series Juliflorae, and may be grouped in the 

 sub-series Stenophyllae, sub-section with spikes pedunculate. 



