ORCHIDACEAE. 
356 aonb dntdielald . [ Acianthus. 
papillae. Column arched over the lip, much thickened and expanded 
towards the tip. Pollinia 2 in each anther-cell, deeply bilobed. — Handb, 
N.Z. Fl. (1864) 264; Cheesem. Man. N.Z. Fl. (1906) 684. 
KermMApDEo Istanps, Nortu Isutanp: Abundant in lowland districts throughout. 
Sours IsLAND : Marlborough—Pelorus Sound, J. H. Macmahon! Nelson—Dun Moun- 
tain, T. Kirk! near Westport, W.-Townson / CHATHAM Istanps: Abundant, F. A. D. 
Cox! Miss Seddon ! Sea-level to 2500 ft. May—August. 
For an account of the fertilization, see a paper by myself in Trans. N.Z. Inst. vii 
(1875) 349. | 
-) 13. CYRTOSTYLIS R. Br. \ 
Small delicate terrestrial herbs. Root of rounded tubers on long fleshy 
fibres. Leaf solitary, sessile, oblong to orbicular. Flowers few in a terminal 
raceme, often reduced to one; bracts small. Upper sepal linear or linear- 
lanceolate, erect or incurved, concave ; lateral sepals and petals narrow- 
linear, spreading or deflexed. Lip horizontally spreading from the base 
of the column, undivided, oblong, flat, entire; base with 2 calli, produced 
into raised lines for some distance along the lamina. Column elongated, 
incurved, winged on each side towards the summit; stigma cup-shaped, 
placed just under the rostellum. Anther terminal, erect, 2-celled ; pollinia 
2 in each cell, faleate or lobed. 
A genus of 2 closely allied speciesy one found in New, Zealand, the other in Australia. 
1. C. oblonga Hook. f. Fl. Nov. Zel. 1 (1853) 246.—Stems very slender, aq‘:2 
clabrous, 1-4 in. high. Leaf towards the base of the stem, sessile, spreading, 
i14in. long, oblong or oblong-ovate, obtuse or subacute, cordate or 
rounded at the base, thin and membranous, flat, obscurely 3-5-nerved. 
Flowers solitary or in a 2-5-flowered raceme, greenish, 4 in. diam. ; bracts 
small, ovate-lanceolate. Upper sepal narrow linear-obovate, erect; lateral 
sepals and petals narrow-linear, acute, spreading or deflexed. Lip as long 
as the sepals, linear-oblong, obtuse. Column slender, about 3 the length 
of the upper sepal. Pollinia 2 in each anther-cell, oblong-faleate—Handb. 
N.Z. Fl. (1864) 264; Cheesem. Man. N.Z. Fl. (1906) 685. _ 
? wo Rape Motels “Hoe b.&. KS0-70) © 
ar, rotundifolia. — Altogether like the type, but the leaf is orbicular-cordate, 
4-llin. diam.—C. rotundifolia Hook. f. Fl. Nov. Zel. i (1853) 246; Handb. N.Z. Fil. 
(1864) 264. C. macrophylla Hook. f. Fl. Nov. Zel. i (1853) 246. 
Norra Istanp: Not uncommon from the North Cape southwards. SouTH 
IsLAND : Marlborough—Pelorus Sound, J. Rutland, J. H. Macmahon ! ‘Nelson—Buller 
Valley, 7. F. C. Canterbury—Banks Peninsula, J. B. Armstrong ; Broken River, J. D. 
Enys! T. F. C, Sea-level to 2500 ft. August—October. 
I have been compelled to sink C. rotundifolia as a species. It differs in no respect 
except in the width of the leaf, and in several localities I have observed the two forms 
growing intermixed and gradually passing into each eo 
$2.2 (Re cle >. Q Auk. he 25 jo. 2. 
14. CALOCHILUS R. Br. IQio: Jr9. 
Glabrous terrestrial herbs. Root of oblong tubers. Leaves 1 or rarely 
2 near the base of the stem, narrow-linear ; usually there are 1 or 2 foliaceous | 
sheathing bracts higher up. Flowers few in a terminal raceme, rather 
large, handsome ; pedicels short ; lower bract usually exceeding the ovary. 
Sepals almost equal, free: upper erect, broad, concave ; lateral spreading. 
Petals smaller, broadly faleate. Lip as long or longer than the sepals, 
sessile, spreading or pendulous, undivided, the margins and whole surface 
Age Riad, . pare . paevin, « Soe. Wed: 1127, 
