ORCHIDACEAE. 
Pterostylis. | Perm aatehy, 303 
long. Galea erect at the base, curved forwards at the tip; upper sepal 
acute or acuminate; petals falcate, obtuse or subacute. Lower lip with 
the entire part short, broadly cuneate, the free lobes gradually narrowed 
into short filiform points embracing the galea but not much exceeding it. 
Lip linear-oblong, flat, obtuse ; basal appendage short, curved, penicillate 
at the tip. Column not 4 the length of the galea, upper lobe of wing 
with a subulate tooth ; lower lobe oblong, obtuse-—Handb. N.Z. Fl. (1864) 
268°; Cheesem. Man. N.Z. Fl. (1906) 681; Ill. N.Z. Fl. 11 (1914) t. 196. 
Nort Istanp: Hawke’s Bay—Lake Tutira, H. Guthrie-Smith! Wellington— 
Ruahine Mountains and Cape Palliser, Oolenso/ Patangata, Tryon! Tararua Moun- 
tains, B. CO. Aston! Sovutu Istanp: Marlborongh—ZT'. Aik! Canterbury—Ash- 
burton, H. H. Allan! Otago—Buchanan! Signal Hill, Millburn, Tuapeka, Peérie / 
Sea-level to 2500 ft., usually in Sphagnum bogs. December-January. 
Differs from P. micromega in the stouter habit, larger more reticulate and often 
decidediy rosulate radical leaves, cauline leaves reduced to sheathing bracts, smaller 
flowers with shorter points to the lateral sepals, and broader shorter lip. P. Oliveri is 
separated by the same characters, and by the much larger conspicuously decurved 
flower. According to Dr. Schlechter, P. foliata is closely allied to the New Caledonian 
P. Bureauviana, a species with which I am not acquainted. 
9. P. venosa Ool. in Trans. N.Z. Inst. xxviii (1896) 610.—Small, per- 
fectly glabrous, 2-3in. high. Leaves 2 or 3 near the base of the stem, 
large for the size of the plant, 3-2 in. long, broadly oblong to oblong-ovate 
or elliptic-oblong, obtuse or subacute, thin and membranous, veins con- 
spicuously reticulated ; cauline leaves wanting. Scape short; flower soli- 
tary, 4-3 in. long. Galea erect at the base, sharply curved forwards towards 
the tip; upper sepal acute or acuminate; petals broadly falcate, acute. 
Lower lip broadly cuneate, the free lobes narrowed into filiform points 
exceeding the galea, sometimes recurved at the tips. Lip lanceolate, nar- 
rowed to a blunt point, rather thick, grooved, purplish; basal appendage 
penicillate at the tip. Column barely 4 as long as the galea, upper lobe 
of wing with an erect subulate point ; lower lobe oblong, obtuse.—Cheesem. 
Man. N.Z. Fl. (1906) 681. (?%) P. trifolia Col. le. xxxi (1899) 281. 
Nortu IstaAnp: Ruahine Mountains, Olsen / Mount Holdsworth, Tararua Range, 
W. Townson!  Sourn Istanp: Marlborough—Endeavour Inlet, alt. 3000 ft., J. H. 
Macmahon ! Nelson—Mount Frederic, near Westport, W. Townson / 
This appears to be separated from P. foliata by the smaller size and proportionately 
larger leaves, the short scape, which wants the large sheathing bracts of P. foliata, and 
by the more sharply curved and more acute galea. Although I do not doubt its dis- 
tinctness as a species, the amount of material examined is small, and much of it is in 
poor condition. A fresh description of the flower, based on living specimens, is much 
wanted. 
10. P. trullifolia Hook. f. Fl. Nov. Zel. i (1853) 249.—Stem slender, 
glabrous, 2-6in. high, seldom more. Jadical leaves often wanting in 
flowering specimens or 1-4, in flowerless ones more numerous and subrosu- 
late, petiolate ; blade }-41in. long, broadly ovate or orbicular-cordate or 
trowel-shaped, acute or obtuse ; petiole as long or longer than the blade. 
Cauline leaves or bracts 3-5, flat, spreading, 4-lin. long, lanceolate or 
linear-lanceolate, acute or acuminate, the lower sometimes broader and 
petiolate. Flower solitary, $-lin. long. Galea erect at the base and then 
gradually curved forwards ; upper sepal lanceolate, acuminate ; petals as 
broad, falcate, acuminate. Lower lip broadly cuneate, the lobes long and 
filiform, embracing the upper sepal and exceeding it. Lip linear, glabrous, 
obtuse, its tip exserted ; basal appendage linear, much curved, penicillate 
12—F 1, 
