«ig 2 Alban SC. 2 = T, Annee ; 
TR. SS. AWG. 194.2 
Bae an TNRITTS: 364, 
350 ORCHIDACEAE. [ Pterostylis. 
the flower but often shorter than it, 3-14 in. long, }-}in. broad, narrow 
linear-lanceolate, acuminate, pale-green. Flower solitary, large, 2-3 in. 
long including the tails to the lateral sepals, green, often streaked with 
red or reddish-brown. Galea erect at the base and then curved forwards ; 
upper sepal produced into a long caudate often filiform point ; petals also 
caudate-acuminate or shortly filiform, but always much shorter than the 
upper sepal. Lower lip with the entire part broadly cuneate, the free lobes 
gradually narrowed into long filiform erect tails 1-2in. long. Lip narrow 
linear-oblong, obtuse, its tip slightly exserted ; basa] appendage curved, 
repeatedly divided and penicillate at the tip. Column slender, more than 
+ the length of the. galea, upper lobe of wings with an erect subulate 
tooth at the outer angle; lower lobe narrow-oblong, obtuse—4. Cunn. 
Precur. (1836) n. 313; Raoul Choiw (1846) 41; Hook. f. Fl. Nov. Zel. i 
(1853) 248; Handb. N.Z. Fl. (1864) 268; Cheesem. Man. N.Z, Fl. (1906) 
679; fll. N.Z. Fl. 1 (1914) t. 195. P. emarginata Col. in Trans. N.Z. Inst. 
xv (1883) 328. P. patens Col. lc. xvin (1886) 270. P. speciosa Col. lc. 
xxii (1890) 488. P. auriculata Col. lc. xxii (1890) 489. PP. subsimilis 
Col. lic. xxvii (1896) 611. 
NortH AND SoutH ISLANDS, STEWART ISLAND, CHATHAM IsLANDS: Abundant 
in shaded places from the North Cape southwards. Sea-level to 4000 ft. October- 
November, 
‘The most widely spread of the New Zealand species. It varies much in size and 
degree of robustness, the size of the flower, and in the length of the filiform tails to 
the sepals and petals, &c. Mr. Colenso has made no less than 5 species based upon 
what appear to me to be exceedingly slight and inconstant differences. After a 
careful study of his descriptions and specimens I must confess my inability to dis- 
tinguish any of them, even as varieties. 
2. P. australis Hook. f. Fl. Nov. Zel. i (1853) 248.—Habit of P. Banksu 
but shorter, 4-10 in, high, rarely more. Leaves shorter and broader, seldom 
overtopping the flower, $-?1in. broad, linear-lanceolate, acute or acuminate. 
Flower small, 3-1/ in, long including the points of the sepals. Galea 
much as in P. Banksw, but the upper sepal and petals are not produced 
into filiform points. Lower lip with the free lobes narrowed into short 
subulate erect points not exceeding the galea in length. Lip and column 
as in P. Banksw.—Handb. N.Z. Fl. (1864) 268; Cheesem. Man, N.Z. FI. 
(1906) 679. 
NortH AND SourH Istanps: In various localities from the Ruahine Mountains 
to the south of Otago, but not common. Stewart Istanp, CHATHAM ISLANDS: 
Abundant, Lyall, T. Kirk! Cockayne, H. H. Travers, F. A. D. Cox! &c. Novem ber- 
January. 
No doubt very closely allied to P. Banksii, and to some extent connected with it 
by intermediate forms. But if it be merged with that species, then for the sake of 
consistency P. graminea should also be included, for it occupies just the same position 
on one side of P. Banksii that P. australis does on the other. It seems preferable to 
treat both as distinct though closely related species. 
3. P. graminea Hook. f. Fl. Nov. Zel. i (1853) 248.—Habit of P. Banksi, 
but smaller and much more slender, 4-10 in. high. Leaves overtopping 
the flower or shorter than it, 1-5 in. long, }-1in. broad, narrow-linear or 
narrow linear-lanceolate, acute or acuminate. Flower small, 3-2 in. long 
including the points of the sepals. Galea as in P. Banksii, but the upper 
sepal and petals, although acuminate, are not produced into filiform points 
or into very short ones. Lower lip with the free lobes narrowed into 
