316 
CALIFORNIA— SUPPLEMENT. 
\_Ranunculacece, 
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 gathered them. 
Ord. I. RANUNCULACEA:. Juss. 
1. Ranunculus aquatUis. L — Hook, et Arn. in Bot of Beech. Voy. v. 2. p. 134. Torr. 
et Gray, FI. of N. Am. \.p. 15 — var. brachypus ; 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. FI. Bor. Am. 1. p. 12. t. 5. A. Torr. et Gr. FI. 1. p. 19. 
Hab. Snake Country: Blue Mountains. (Tolmie.') 
3. R. hebecarpus ; gracilis ramosus patenti-hirsutus foliosus, foliis longe petiolatis 
inferioribus tripartitis superioribus triternatim partitis segmeutis cuneatis 3-5-fidis, pedun- 
culis oppositifoliis folii longiludine, petalis 5 calycem subaequantibus, carpellis suborbicu- 
laribus cornpressis stylo recurvo acuminatis tuberculatis hirsutis. — R. pai'vifiorus. y. Torr. 
et Gr. FI. \.p. 25. 
This will rank near i?. Chilensis ; from which, how'ever, it is readily discriminated by its smaller size, 
fewer flowers and petals, more deeply divided leaves, and especially by the tuberculated and hispid carpels. 
Tlie much more hairy leaves and carpels, and the deeply divided leaves, distinguish it from R. parvifiorus, 
Sm., to which, in other respects, it bears a considerable resemblance. 
4. B. 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 11-14 obovato-oblongis, 
ovariis stylo brevi recurvato. 
A species remarkable for the much divided leaves in a pinnated manner, and for the segments being broad 
and decurrent at the base. The flowers are large, many-petaled. It may be placed near R. orthorhynchus. 
Hook. FI. Bor. Am. v. 1. p. 21. t. 9 ; like which, it has a root formed of many thickish descending fibres. 
1. Isopyrum occidentale ; apetalum, radice — ? petiolis basi vix dilatatis, capsulis 6-7 
oblongis cornpressis transversim venosis patentibus stylo filiformi apice recurvo mucrona- 
lis 8-9 spermis. 
This appears to belong to the Enemion 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 I. tJialic- 
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 
