Corysanthes. | ORCHIDE. 693: 
B. Lip with 2 rounded orifices at the base. Lateral sepals and petals filiform, 
longer than the lip (except in C. Matthewsii). 
Leaf 3-1lin., sessile, ovate- or orbicular-cordate. Lateral 
sepals and petals about half as long as the lip. Lip 
truncate, entire or minutely denticulate 2. C. Matthewsit. 
Leaf 3-1} in., sessile, ovate-oblong, rounded or “cordate at 
the base. Lip truncate, coarsely toothed or fimbriate.. 3. C. oblonga. 
Leaf 4-2 in., sessile, oblong- ovate, acuminate. Upper 
sepal acuminate. Hp bent forwards and downwards, 
acuminate. 4. C. rivularis. 
Leaf 4-1} in., "sessile or shortly petiolate, broadly oblong 
or orbicular, apiculate. Upper sepal acute. Lip ab- 
ruptly reflexed and expanded, apex acute 3 5. C. rotundifolia. 
Leaf }-2in., petiolate, orbicular or reniform, 3-lobed at 
the tip. Upper sepal obtuse. Lip eps pemexce and 
expanded, apex rounded : 6. C. triloba. 
Large and stout, 2-Sin. high. " Leaf on a Aiiolc 3- 3in, 
long; lamina 4-3in., broadly oblong or orbicular. 
Upper sepal acute. Lip large, abruptly reflexed and 
much expanded a ns 5c a -. 1. C. macrantha. 
1. C. Cheesemanii, Hook. /. ex ty Kirk i Trans. N.Z. Inst. 
iii. (1871) 180.—A very small SDE E $-1in. high when in flower, 
rarely more. Leai sessile, +4 in. long, ovate-cordate or orbicular- 
cordate, apiculate, membranous, veins conspicuous when dry. 
Flower sessile or shortly peduncled, about in. long, dull-purple ; 
bract short, sheathing. Upper sepal very “large, helmet- shaped, 
curved over the lp, obtuse. Lateral sepals minute, subulate, erect, 
placed between the basal spurs of the lip. Petals frequently want- 
ing, when present very minute, deflexed, placed under or behind 
the basal spurs of the lip. Lip very large, tubular, the margins 
involute and meeting behind the column and enclosing it, the base 
produced downwards on each side into a short conical spur; the 
mouth expanded and abruptly recurved ; margins entire. Column 
short, stout, erect, with a large fleshy gland at the base. Anther 
terminal, very large. Capsule 4 yin. long, linear-oblong, elevated on 
the greatly elongated peduncle, “which is sometimes over 6 in. long. 
—Ic. Plant. t. 1120. 
Nort Istanp: Auckland—Kaitaia, R. H. Matthews! vicinity of Auck- 
land, 7. #. C. Souru Isuanp: Near Westport, W. Townson ! June-July. 
A very curious little plant, probably not uncommon, but easily overlooked, 
from its small size and early flowering-period. It is very closely allied to the 
Australian C. bicalcarata, and may prove identical with it. 
2. C. Matthewsii, Cheesem. in Trans. N.Z. Inst. xxxi. (1899) 
351.—Small, delicate, ¢-1}in. high. Leaf sessile, 4-Lin. long, 
ovate-cordate or orbicular-cordate, acute or obtuse, membranous. 
when dry, showing 1 or 2 circular veins on each side of the midrib 
connected by transverse veinlets. Flower shortly peduncled, avout 
in. long, horizontal or drooping, purplish-green; bract sinall, 
erect. Upper sepal very narrow at the base, broadened above and 
