412 CALIFORNIA ACADEMY OF SCIENCES. 



266. Urtica holosericea, Nutt. PL Gamb. 183. — Seen 

 in but two or three localities, not far from the shore, on the 

 north side. 



267. Urtica urens, Linn. Sp. PI. 984. 



268. Parietaria debilis, Forst. Prod. Fl. Austral. 73. 



269. Eremocarpus setigerus, Benth. Bot. Sulph. 53. t. 

 26. — Abundant in fields; perhaps brought in with seed of 

 grain. 



270. EiciNUS COMMUNIS, Linn. Sp. PI. 1007.— Growing 

 spontaneously along the hills back from the landing, form- 

 ing small trees. It is also thoroughly naturalized on stream 

 banks in the vicinity of Santa Barbara on ihe mainland. 



271. Salix l^vigata, Bebb. Bot. Cal. ii. 83. — Fine trees 

 in many of the canons at the north. 



272. Salix longifolia, Muhl. DC. Prod, xvi^ 214.— One 

 bush, in flower, at the south side near the shore. 



273. Salix lasiolepis, Benth. PI. Hartw. 335.— With 

 the last; a very pubescent form. 



274. PoPULUS TRiCHOCARPA, Torr. Hook. Ic. t. 878. — 

 Frequent in deep canons at the north side; also more rarely 

 at the south. 



275. Quercus dumosa, Nutt. Sylv. i. 7. — Very common 

 at the north; the smaller specimens of the open hill country 

 frequently with spikes erect, and many of the flowers per- 

 fect, yielding a spike of a dozen acorns. 



276. Quercus chrysolepis, Liebm. Dansk. Yidensk. For- 

 handl. 1854, 173. — At the north, near the summit; not com- 

 mon. 



277. Quercus tomentella, Engelm. Trans. St. Louis, 

 Acad. iii. 393 — Frequent; the trees smaller than on Guad- 

 alupe. 



