692 CONTRIBUTIONS TO THE BOTANICAL REGISTER.
Astelma is now first detached from Gnaphalium by the above able band ; and founded upon the present species characterised as a genus by a naked receptacle of t/ie flower. (neither chaffy nor honeycombed) ; a sessile feathered seed- crown, the radii of which are connected at the base; an imbricated calyx composed of scariose leaflets, the inner- most of which are convergent, and whose florets are all both stamen-bearing and pistil-bearing. It is the nearest genus to Elichrysum, from the genuine species of which, according to Mr. Brown, it only differs by the rayless calyx.
Bot Beg. 532 (1821).
Dendrobium cucullatum, caulibus pendulis, foliis bifariis lanceolatis acuminatis, pedunculis oppositifoliis subbifloris, labello indiviso circumscriptione ovato basi cucullato. Brown MSS.
It is said to be in several collections, and to have been generally conceived to be Dendrobium Pierardi of the unedited part of Roxburgh's ' Flora Indica' ; and which, according to Mr. Brown, to whom, as in so many instances, we are indebted for all we have to say on the subject, it is possible it may really be ; but finding by both figure and description the flowering stems of that species represented as leafless, the lamina of the labellum of an obovate form, and leaves as emarginate, while in the present plant the flowering stems are in full leaf, its labellum of an ovate outline, and the leaves taper-pointed, he has deemed it safer to regard the present sample as belonging to a distinct species.
Bot. Beg. 548 (1821).
Lissochilus. Massce pollinis 2, oblique bilobae. Label- lum basi saccatum : lamina sessili indivisa convexa, postice excisa et cum basi columnae apterse edentulse connata. Brown MSS.
L. speciosus, petalis interioribus divaricatis duplo mnjo- ribus exterioribus reflexis, labello alte cordato. Brown MSS.
Herba 4-pedalis et ultra. Folia radicalia ensiformia
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