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. 



