352 ORCHIDACEAE. [ Pterostylis. 
acute, narrowed into a short broad petiole or almost sessile, thin and 
membranous, veins reticulated ; cauline leaves 2 or 3, almost as long but 
narrower, lanceolate or oblong-lanceolate, acute or acuminate, flat, spreading, 
sheathing at the base. Flowers large, solitary or very rarely 2, 1-1} in. 
long. Galea bent forwards so that the point often reaches the ovary ; 
upper sepal produced into a long acuminate point; petals much shorter, 
falcate, acuminate. Lower lip with the entire part broadly cuneate, the 
free lobes gradually narrowed into long filiform points embracing the galea 
and sometimes 14 in. long. Lip narrow-linear, obtuse; basal appendage 
short, curved, penicillate. Column slender, not $ the length of the galea ; 
wings with a short upper lobe bearing an erect subulate tooth at the outer 
angle, lower lobe very long, linear-oblong, obtuse.—Cheesem. Man. N.Z. Fi. 
(1906) 680. 
Soutn Isnanp: Nelson—Mount Arthur Plateau, 7. Ff. C. Canterbury—Bealey, 
T. Kirk! Waimakariri Glaeier, 7. F.C. Westland—Kelly’s Creek, Petrie / Otira Gorge, 
Cockayne, T. F.C. 1000--4000 ft. 34 December—January. 
Very close to P. micromegu, but stouter, with much larger radical and cauline 
leaves, and with the flower Ce Pek ord. decurved. 
oars ~) (Cartan. Aas 2 On. ela 
7. P. Matthewsii Cheesem. in Trans. N.Z. Inst. xlvii (1915) 46—Stout, 
glabrous or sparingly puberulous, 3-5 in. high. Lower leaves 6-8, rosulate 
at the base of the stem, petiolate, 2-12in. long, oblong or oblong-ovate, 
acute or subacute, truncate or almost subcordate at the base, thin and 
membranous ; venation conspicuous, consisting of 2 or 3 parallel longitu- 
dinal veins on each side of the midrib, connected by numerous transverse 
veinlets. Cauline leaves or bracts usually 2, erect and sheathing the greater 
part of the stem above the leaves, 3-14 in. long, lanceolate or oblong- 
lanceolate, acute. Flowers solitary, large for the size of the plant, #-1 in. 
long, }in. broad, strongly curved outwards and downwards from the base, 
so that the 1ip becomes almost horizontal and points to the stem below the 
ovary.. Upper sepal acute or acuminate; petals almost equal in length, 
falcate, lanceolate, acuminate. Lateral sepals (lower lip) connate to the 
middle, the free portions gradually narrowed into short filiform points 
embracing the galea. Lip narrow-ligulate, flat, obtuse » basal appendage 
short, penicillate at the tip. Column slender; auricles with an acuminate 
tooth at the tip. 
Norra Istanp: Mongonui County, crest of ridge leading to Pukemiro Hill, near 
Kaitaia, H7. B. Matthews ! 
No doubt nearly related to P. foliata, but easily separated by the more numerous 
rosulate radical leaves, which are obviously petiolate and truncate or even subcordate 
at the base, and by the strongly deflexed flowers. The flowers of P. foliata are always 
erect at the base, and although the upper part curves forward it never hecomes 
deflexed to anything like the extent of P. Matthewsii. I have had much pleasure in 
dedicating the plant to its zealous discoverer, who, with his father, the late Mr. R. H. 
Matthews, has done excellent work in investigating the orchid flora of the extreme 
northernmost portions of the Dominion. 
8. P. foliata Hook. f. Fl. Nov. Zel. 1 (1853) 249.—Rather stout, very 
variable in size, 3-18 in. high ; upper part of peduncle, ovary, and occasion- 
ally the lateral sepals more or less finely glandular pubescent. Lower leaves 
2-5, subrosulate, sessile or shortly petiolate, 1-13 in. long, elliptic-oblong to 
linear-oblong, obtuse or subacute, rather fleshy when fresh, veins con- 
spicuously reticulated when dried ; cauline leaves reduced to | or 2 large 
sheathing erect lanceolate bracts $-lin. long. Flower solitary, erect, { in. 
