Filices.] CALIFORNIA.— SUPPLEMENT. 405 



Nothing has surprised us more than finding that a species of a Genus, hitherto considered as exclusively 

 inhabiting the Polynesian islands, should be detected in the northern continent of the New World. The 

 collection contains several specimens ; and though it is barely possible that these may have been accidentally 

 mixed up with the herbarium ; yet seeing that every other plant is unquestionably Californian, or from the 

 immediately adjacent territories, and that Mr Douglas had no intercourse with New Holland, where alone the 

 species has hitherto been found, we are bound to believe it a Californian plant, and to introduce it as such. 

 The specimens are very perfect, and some of them in fructification. 



Ord. LXXI. FILICES. Juss. 



1. Polypodium ( Marginaria) Californicum, Kaulf. — Hook, et Am. supra, p. 161 Mar- 



ginaria, Presl. 



San Francisco. Dr Sinclair. — Presl refers this to his genus Marginaria, whose essential character is to have 

 the upper veinlets uniting with the nearest opposite ones, so as to form hexagonal areolae, in which is situated 

 the sorus at the extremity of a lower veinlet. But in this plant the veinlets are sometimes entirely free, and 

 when the union does take place, it is only near the margin. 



2. P. (Eupolypodium) intermedium; fronde lato-lanceolata mernbranacea pellucida fere 

 ad rachin pinnatifida, laciniis oblongis obtusis aequilatis serratis glabris, venulis distinctis 

 liberis rarissime sub margine anastomosanttbus, soris ovalibus solitariis. 



San Francisco. Dr Sinclair Allied to the preceding P. Californicum, and to P. vulgare; from the 



former it differs in the almost entirely free veinlets, from the latter in its oblong or oval sori, and from both 

 in the pellucid, not opaque frond, and in the lacinia: becoming smaller at the base. Although this must be 

 referred to the true Polypodium of Presl, yet the veinlets do occasionally unite so as to form an elongated 

 and somewhat hexagonal areola in which a veinlet, terminated by a sorus, is included. 



1. Gymnogramma triangulare, Kaulf. — Hook, et Grev. Ic. Fil. t. 315. Hook, et Arn. 

 supra, p. 161. 



San Francisco. Dr Sinclair. 



1. Aspidium (Polystichum) munitum, Kaulf. — Hook, et Arn. supra, p. 162. 

 San Francisco. Dr Sinclair. Douglas. 



2. A. (Lastrasa) patens, L Sw Willd. — Polypodium nymphale. Schkuhr, Fil. I. 34. 



San Francisco. Dr Sinclair. 



3. A. (Lastrasa) argutum, Kaulf. — Hook, et Arn. supra, p. 162. 

 San Francisco, Dr Sinclair. Douglas. 



1. Woodwardia radicans, Willd. — Hook, et Arn. supra, p. 162. 

 Hab. San Francisco. Dr Sinclair. Douglas. 

 1. Pteris lanuginosa; frondis tripartita? ramis bipinnatis, pinnulis subtus piloso-lanu- 



