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 ON THE ASCLEPIADE^E. 213

P. odoratissima, that had flowered in the Upsal Garden, and which he confounded with the Asclepias cordata of bors- kael, an error long since pointed out by Dr. Smith in his very accurate and satisfactory account of Pergularia odora- tissima.

��DISCHIDIA.

Char. Corolla urceolata, 5fida.

Corona staminea 5phylla, foliolis bitidis, laciniis subulatis, patentibus, apice recurvis.

Antherce membrana terminatse.

Massm pollinis erectse, basi affixse.

Stigma muticum.

Folliculi lseves. Semina comosa.

Habitus. Herba in arboribus parasitica, dependens, perennis, lactescens, farina alba tota conspersa. Caulis ad genicnla radicans. Folia opposita, subrotunda, crassa, car- nosa. Flores parvi, subumbellati.

Patria. India Orientalis, prsesertim Insular Moluc- [33 canse, necnon Nova Hollandia, ubi prope Endeavour River detexit Must. Banks.

GYMNEMA.

Char. Corolla suburceolata 5fida. Fame sa3pe coronata, squamulis denticulisve 5, sinubus insertis.

Corona staminea nulla.

Antherce membrana terminatse.

Masses pollinis erectse, basi affixse.

Folliculi graciles, lseves. Semina comosa.

Habitus. Suffratices ssepius vokil)iles. Folia Opposita, niembranacea, plana. Vmbellce interpetiolares, cymos;e.

Patria. India Orientalis, Nova Hollandia tropica, el Africa sequinoctialis.

Obs. Of this genus I have examined four species. Two of these are unpublished plants; the third is Asclepias lactifera Linn., of which there is no specimen in the

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