31G 



CALIFORNIA.— SUPPLEMENT. 



[Ranunculacea. 



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, in whose service Mr Douglas 

 was at the time that he {fathered them. 



Ord. I. RANUNCULACEJE. 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. brachypus ; pedunculis folio brevioribus. 



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

 long, invariably shorter than the leaves. 



2. 77. glaberrimus. Hook. FL Bor. Am. 1. p. 12. t. 5. A. Torr. et Gr. Fl. 1. p. 19. 

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



3. 11 hebecarpus ; gracilis ramosus patenti-hirsutus foliosus, foliis longe petiolatis 

 inferioribus tripartitis superioribus triternatim partitis segmentis cuneatis 3-5-fidis, pedun- 

 culis oppositifoliis folii longitudine, petalis 5 calycem subasquantibus, carpeliis suborbicu- 

 laribus compressis stylo recurvo acuminatis tuberculatis hlrsutis. — R. parvifloru's. y. Torr. 

 et Gr. Fl. 1. p. 25. 



This will rank near jR. 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 11. parvijlorus, 

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



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

 longe petiolatis bi-tripinnatim sectis hirsutis supremis minus divisis sessilibus, laciniis 

 lineari-lanceolatis acutissimis basi decurrentibus, vaginis elongatis sulcatis hispidissimis, 

 floribus subpaniculatis, calycibus reflexis hispidissimis, petalis 1 1-14 obovato-oblongis, 

 ovariis stylo brevi recurvato. 



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

 and decurrent at the base. The flowers are large, many-petaled. It may be placed near 11. orthorhynchus, 

 Hook. Fl. Bor. Am. v. 1. p. 21. t. 9 ; like which, it has a root formed of many thickish descending fibres. 



1. Isopyrum occidmtale ; apetalum, radice — ? petiolis basi vix dilatatis, cap^ulis 6-7 

 oblongis compressis transversim venosis patentibus stylo filiformi apice recurvo mucrona- 

 tis 8-9 spermis. 



This appears to belong to the Encmion of Rafinesque and De Candolle, which I can only consider as an 

 apetalous Isopyrum. From Enemion biternatum, which I still think may prove a var. of /. tlialic- 

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

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



