22 FLORA OF TASMANIA. [ Orchidee. 
$ 4. Radical leaves stellate or none. Flowers small, spiked, rarely solitary. Lower lip of perianth ascending. 
13. Pterostylis aphylla (Lindl. Gen. et Sp. Orch. 392); scapo florifero aphyllo bracteis 2-3 re- 
motis instructo, floribus 1-2 erectis, galea apice incurva, sepalo dorsali acuminato, petalis obtusis, labio 
inferiore ascendente apice late bifido, laciniis distantibus brevibus uncinatis, labello lineari-oblongo incluso, 
appendice trifurca. (Gunn, 903.) (Tas. CX VI. C.) 
Has. Heathy plains : near Circular Head, Gunn; Huon River, Oldfield ; Cheshunt, Archer.—(Fl. 
Nov., Dec.) 
DIsTRIB. Swan River (Drummond). 
Â very curious little species, of which I have seen no leaves, but Archer says these appear in winter.—Scape 
rather stout, strict, 3-6 inches high, bearing two or three remote, small, sheathing bracts. Flowers one or two in 
my Tasmanian specimens, four in a Swan River one, erect, about 4—4 inch long, including the ovary, puberulous 
or glabrous, erect. Galea with a short incurved apex. Dorsal sepal acuminate, rather shorter than the blunt petals. 
Petals much contracted and obliquely cuneate at the base, shortly sickle-shaped, white, with red-brown nerves and 
margins. Lower lip closely applied to the galea, shorter than it is, with two short, incurved, uncinate teeth sepa- 
rated by a wide sinus. Zabellum small, included, linear-oblong, with a three-forked apex. Column wings with a 
descending auricle, and ascending, subulate, uncinate arm.— PLATE CXVI. C. Fig. 1, flower; 2, petal; 3, labellum ; 
4, lower lip and labellum ; 5, column :—all magnified. 
14. Pterostylis parviflora (Br. Prodr. 327); foliis in caulibus non floriferis stellatis petiolatis 
parvis ovatis acutis, scapo remote bracteato gracili, floribus 3-8 spicatis remotiusculis erectis, galea apice 
abrupte deflexo, sepalo dorsali acuminato petalis longe acuminatis breviore, labio inferiore erecto late bifido, 
segmentis brevibus uncinatis galea brevioribus, labello incluso lineari-oblongo, appendice apice tricruri.— 
Lindl. l.c. 389. (Gunn, 759.) 
Has. Sandy soil; probably not uncommon, but easily overlooked: Circular Head, Gunn; Huon 
River, Oldfield; Hobarton, J. D. H.—(Fl. Oct.) (v. v.) 
Disrris. New South Wales, 
I have referred this plant to Brown’s P. parviflora, with the insufficient description of which it quite agrees ; 
few-flowered specimens of P. aphylla may however equally be included in that description. The present plant is 
taller, more slender than P. aphylla, has a scape 3-10 inches high, three- to eight-flowered (rarely more), and bears 
small, ovate, petiolate leaves, which are borne on my specimens on lateral shoots at the base of the flowering 
scapes. It further differs from P. aphylla in the much longer and deflexed apex of the galea, and in the longer 
acuminate petals. 
$ 5. Leaves all cauline, alternate. Scape one- to four-flowered. Lower lip of perianth deflezed. 
15. Pterostylis longifolia (Br. Prodr. 327); scapo 1-5-floro gracili, foliis alternis anguste lanceo- 
latis acuminatis, perianthio horizontali, galea lata abrupte apiculata, labio inferiore deflexo breviter bifido, 
lobis ovatis apice subulatis, labello brevissimo ciliato oblongo apice dentato, appendice brevi obtusa.— Lindl. 
l.c. 388. (Gunn, 345.) (Tas. CXVII. B.) 
Has. Common in dry soil in forest land.—(Fl. Oct.) (v. v.) 
Disrars. New South Wales and Victoria. 
I have followed Lindley in referring this common plant to Brown's P. longifolia.— Stem very slender, wiry, 
4-14 inches tall, leafy throughout its length, with narrow-lanceolate or subulate-acuminate leaves. Flowers 3—5 
(sometimes 6—8, but rarely), pale-green, about 3 inch long, puberulous or glabrous. Galea horizontal, broad, sud- 
denly acuminate; dorsal sepal rather longer than the petals. Lower lip suddenly bent down, bifid; lobes ovate, 
