692 ORCHIDEZ. [| Townsonia. 
column; lamina erect, undivided, broadly ovate-rhomboid, sub- 
cordate at the base, entire, margins involute and clasping the 
column towards the base; disc smooth, without calli or ridges, or 
with an obscure thickening on each side near the base. Column 
rather shorter than the lip, erect, broadly and equally winged from 
the base; wings not continued upwards behind the anther. 
Stigma prominent, placed just under the small rostellum. Anther 
terminal, erect, 2-celled ; pollinia free, granular. 
A very curious little plant. It is clearly allied to Adenochilus, of which it 
has the habit, but differs in the smooth undivided Jip, minute petals, and in the 
column-wings not being produced upwards behind the anther. The smooth 
undivided lip also separates it from Chiloglottis, Caladenia, Burnettia, aud 
other allied genera. Believing it to form the type of a new genus, I have much 
pleasure in dedicating it to its discoverer, Mr. W. Townson, of Westport, to- 
whom I am much indebted for specimens and information respecting the 
botany of the north-western portion of the South Island. 
1. T. deflexa, Cheesem.—Very slender, 3-6in. high. Radical 
leaves on slender petioles 4-14in. long; blade +4in., broadly 
oblong or orbicular-ovate, obtuse or apiculate, rounded or subcordate 
at the base, thin and membranous, veins reticulated. Cauline leaf 
ovate, acute, often very small and scale-like. Flowers small, 1+ in. 
long, greenish. 
Souru Isuanp: Ne’son—Vicinity of Westport, Townson! November- 
December. 
20. CORYSANTHES, R. Br. 
Dwarf very delicate succulent terrestrial herbs. Root of small 
rounded tubers on fleshy caudicles. Leaf solitary, ovate-cordate or 
orbicular or reniform. Flower solitary, large for the size of the 
plant, at first almost sessile on the leaf, but peduncle elongating 
considerably in fruit. Upper sepal large, erect and incurved,. 
helmet-shaped ; lateral free, small and linear, or long and filiform. 
Petals similar to the lateral sepals but smaller, sometimes wanting. 
Lip large, the lower portion tubular, the margins meeting behind 
the column and enclosing it; base with a rounded auricle on 
each side of the column or with a hollow conical spur; upper part 
truncate or expanded into a broad abruptly reflexed limb; mar- 
gins entire or denticulate or fimbriate. Column short, straight, 
2-winged at the top; stigma broad, placed just under the rostellum. 
Anther large, terminal, erect, 2-celled; pollinia 4, powdery, free. 
A very curious genius of about 16 species, found in Malaya, Australia, and 
New Zealand, the species of each country being endemic. 
A. Lip produced downwards into 2 conical spurs at the base. Lateral sepals: 
and petals minute. 
Leaf $-4 in., sessile, ovate-cordate af és .. Ll. C. Cheesemanit. 
