3,0 CALIFORNIA—SUPPLEMENT. LRanuacuhce*. 



CALIFORNIA.— SUPPLEMENT. 



Where not otherwise mentioned, it is to be understood that the following species are from the collection 

 of Mr Douglas. They were presented by the Horticultural Society of London, iu whose service Mr Douglas 

 was at the time that he gathered them. 



Ord. I. RANUNCULACE^:. Juss. 

 1. Ranunculus aquatilis. L — Hook, et Am. in Bot. of Beech, Voy. v. 2. p. 134. Torr. 

 et Gray, Fl. of N. Am, 1. p. 15._var. brae ky pus ; pedunculis folio brevioribus. 



This var. has all the leaves capillaceo-multifid : the segments divaricated. Peduncles less than an inch 

 long, invariably shorter than the leaves. 



2. R. glaberrimus. Hook. Fl. Bor. Am. I. p. 12. t. 5. A. Torr. et Gr. Fl. J. ». 19. 

 Hab. Snake Country: Blue Mountains. (Tolmie.) 



3. R. hebecarpus; gracilis ramosus patenti-hirsutus foliosus, foliis longe petiolatis 

 inferioribus tripartitis superioribus triternatim partitissegmeutis cunealis 3-5-fidis, pedun- 

 culis oppositifoliis folii longimdine, petal is 5 calycem sulre-quaiilibus, cnrpellis su'borbicu- 



laribus compressis stylo recurvo acuminatis tuberculatis hirsulis R. parviflurus y Torr 



et Gr. FL \. p. 25. / 



This will rank near II. Chilensis ; from which, however, it is readily discriminated by its smaller size 

 fewer flowers and petals, more deeply divided leaves, and especially by the tuberculated and hispid carpels! 

 The much more hairy leaves and carpels, and the deeply divided leaves, distinguish it from It. parviflorus, 

 fern., to which, in other respects, it bears a considerable resemblance. 



4. R.dissectus; caule erecto glabriusculo ramoso, foliis radicalibus inferioribusque 

 onge petiolatis b.-tn P >nnatim sectis hirsutis supremis minus divisis sessilibus, laciniis 



J.nean-lanceolat.s acutissimis basi dec.irrentibus, vaginis elongatis sulca.is hispidissimis, 

 flonbus subpan.culatis, calycbus reflexis hispidissimis, petalis 11-14 obovato-oblon.ns, 

 ovariis stylo brevi recurvato. 



A species remarkable for the much divided leaves in a pinnated manner, and for the segments bein^ broad 

 and deenrrent at the base. The flowers are large, many-pe.aled. It may be placed near R. orthorhynchus. 

 Hook. Fl. Bor. Am. v. 1. p. 21. t. ; life which, it has a root formed of many thickish descending fibres. 



I. Isopyrum occidentale ; apetalum, radice — ? petiolis basi vix dilatatis, capsulis 6-7 

 oblongis compressis transversim venosis patentibus stylo filtformi apice recurvo mucrona- 

 tis 8-9 spermis. 



This a,.pears to belong to the Euernion of Rafinesque and De Candolle, which I can only consider as an 

 apetalous Isopyrum. From Enemion biternatum, which I still "think n.ay prove a var of / thalic- 

 troules, the present one differs in the smaller sepals, scarcely dilated base of the petioles, and especially iu 

 the more numerous capsules, and their different figure aud direction, and the number of seeds • in the 



