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 32 i PLANTS OF CENTRAL AUSTRALIA

was first found in November, 1841. The following charac- ters, if constant, will sufficiently distinguish it from S. grandiflora.

SwAiNsoNA {Grei/ana) sufFruticosa pubescens, foliis 5-9- jugis inexpansis incano-tomentosis ; foliolis oblongis obtusis retusisve : adultis semiglabratis : rachi snbincana, racemis multitioris folio longioribus, bracteis lateralibus lanceato- linearibus brevioribus tubo calycis albo-lanati quinque- dentati : dentibus obtusiusculis tubo dimidio brevioribns, vexillo bicalloso.

In the second edition of Hortus Kewensis (vol. 4, p. 326), I excluded from the generic character of Swainsona the calli of the vexillum, having observed two Australian species where they were wanting, but which in every other respect appeared to me referable to this genus ; for the same reason I continue to introduce the calli, where they exist, into the specific characters, as was done in Hortus Kewensis, 1. c. In the generic character of Swainsona, given in De Candolle's Prodromus (vol. 2, p. 271), the calli of vexillum are transferred to the calyx ; this can only be regarded as an oversight, which perhaps has been cor- 76] rected by the author himself, and which, so far as I know, has never been adopted in any more recent work in which the generic character of Swainsona is given.

8. Swainsona? {laxa) glabra, caule ramoso, fohis 6-7- jugis ; foholis oblongo-ovalibus obtusis, racemis elongatis laxis, pedicellis calyce glabro quinquedentato brevioribus, bracteolis subulatis, vexillo ecalloso.

Log. Statio nulla indicate, in Herb. D. Sturt.

Obs. There is something in the aspect of this plant not entirely agreeing with the other species of the genus ; and as the fruit is unknown, and the flowers yellow, I refer it with a doubt to Swainsona.

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