146 CALIFORNIA ACADEMY OF SCIENCES. 



to rest it upon those characters alone, sufficient although 

 they would seem to be, which were indicated both bj Vogel 

 and by Nuttall a half century ago. The indehisc mt pods, 

 promptly deciduous at maturity, are so utterly and widely 

 unlike those of any Hosackia that I suppose, the character 

 being here pointed out, there will henceforth remain less 

 excuse than formerly for confounding the genera. It is so 

 manifest a character to any one examining the plants in the 

 field at the maturing of the fruit, that I wonder Nuttall, in 

 his field-researches, did not notice it. The generic name 

 proposed by him is more pleasing than that of Vogel, but it 

 came into publicity after Si/rnicitittin. It is therefore now 

 of little importance that the authors of the Flora of North 

 America, in the place referred to, did not make unmodified 

 use of Nuttall's manuscript of Drepaaolohu^, but only em- 

 ployed his names and descriptions, referring the species 

 generically to Hosackia.. The goodly number which have 

 been newly discovered in later years have all come out 

 under that name, excepting the three herein first described. 

 Full descriptions of all the rest are to be found in either 

 the Botany of California or the Bulletins of the California 

 Academy, that of each under the specific name here adopted. 



S. DENDROID EUM. Shrubby, erect, 4—7 feet high, with 

 roughish brown stem an inch or two in thickness, and many 

 short ascending branches: branchlets angular, their growing- 

 parts more or less minutely appressed-silky, the plant other- 

 wise filabrous: leaflets three, narrowly oblong, obtuse: um- 

 bels numerous, on short peduncles, not bracted: calyx 3 — 4 

 lines long, the triangular-subulate teeth a fourth as long as 

 the nearly cylindrical tube: corolla 4 — 6 lines long: pod 

 J-inch long, slightly curved, 3-seeded: seeds terete and 

 straight. 



Hill tops, among other bushes, on the higher parts of 

 Santa Cruz Island. Near S. glabram, but of entirely differ- 

 ent habit, with much larger flowers and fruit, on short, 

 rigid, crowded branchlets. 



