NEOTTEJE—DIURID.E. 513 
$4. Sepala lateralia basi convexa. 
a. Columne lacinie laterales apice bifide aut bidentate. Anthera mucronata 
aut rostrata. 
1, PnasoPHyLLUM brachystachyum. 
P. sepalis acutissimis nudis lateralibus carnosis dupld dorsali membranaceo 
longioribus basi cohzrentibus, petalis dorsali brevioribus acutissimis, 
labelli lamina lanceolatà basi obtuse bicarinatà imberbi, laciniis columnz 
bifidis, antherze mucrone brevi. 
Hab. in Tasmannia; Circular Head et Rocky Cape, Dec. Feb. terrà sterili 
sabulosà, nec non in collibus Hampshire, rarissimum, Gunn, 930. (hab. 
$. sp.) 
Stems very slender, from 4 to 8 inches high, with one narrow close- 
pressed leaf a little below the flowers, which are small, and arranged in a 
short few flowered spike. 
2. PnasoPHvLLuM rufum. R. Brown, l.c. 
P. sepalis lateralibus distinctis; dorsali petalisque nudis, labelli lamina 
obovato-cuneatà apice denticulato marginibus brevissime? ciliatis, co- 
lumnz laciniis bifidis, anthere mucrone setaceo. 
Hab. in Australia ad Portum Jackson, R. Brown. 
3. PnasoPHvLLuM nigricans. R. Brown, l. c 
P. sepalis lateralibus basi cohzrentibus dorsali petalisque nudis, labelli 
laminà oblongo-ovatà bicarinatà imberbi, laciniis lateralibus columne 
triangularibus bidentatis ; anthere mucrone brevissimo. 
Hab. in Australie orà meridionali. R. Brown. 
4. PnasornyLLUM truncatum. 
P. folio spicà multiflorà longiore, ovariis subrotundis obovatisque, bracteis 
minimis squamzformibus, sepalis linearibus acuminatis lateralibus liberis, 
petalis linearibus obtusis, labelli lamina petalis equali bilamellatà : dimi- 
dio superiore ovato undulato, column laciniis inzequaliter bidentatis, 
a. labello petalisque albis. 
B. labello viridi, staturá majore. 
Hab. in Tasmannia; a in paludibus nunc mare inundatis juxta Circular 
head, Nov. Jan. Gunn 9294, 925; |. Rocky Cape, Dec. Gunn. 928. 
(hab. s. sp.) 
The tubercles of the root of this species are half two-lobed. The stem 
is from 1 to 14 foot high, stouter and stronger in the variety 8. It is 
nearly related to P. patens, from which its unequally two-lobed column 
wings distinctly separate it. 
b. Columne lacinie laterales apice integre, nunc latere altero emarginate. 
x Anthera mutica. 
* Labellum laminà adnatà marginibus liberà auctum; sensim 
apicem versus angustatum. 
5. PrasopuyLLUM patens. R. Brown, l.c. 
P. ovariis obovatis bracteà subrotunda ter longioribus, sepalis acutis latera- 
September, 1840. XXX 
