UOTANY. 8'J 



Quercus G-arryana, Hook. Flor. Bor.-Amer. '&,p. 159. Northern California and Oregon. 



Quercus HrxDSii, Benth. Bot. Sulph. p. 55. Sacramento valley, Cal. 



Qderccs Kelloggii, Ncwb. Q. tinctoria var. Californica, Torrey, in Whipple's Rep. p. 138. 

 Hills near San Francisco and Fort Reading. 



Quercus densiflora, Hook, d- Am. Bot. Beech, p. 391. Q. Echinacea, Torr. I. c; Nutt. Sylv. 1, 

 p. 11, /. 5. Foot lulls, Sierra Nevada, Cal. 



Quercus fulvbsckns, Kellogg, Proc. Cal. Acad. l,p. 67, 71. Q.crassipocula, Torr. I. c. Banks 

 of Canoe creek. 



Quercus (Sp. .) We passed through thickets of a small oak, near Lassen's butte, N. 



Cal., which is apparently undescribed. Our specimens were unfortunately lost in crossing the 

 Cascade mountains. The leaf and fruit resemble those of Q. Garryana, but the plant grows 

 but 5 or 6 feet high. 



Castanea chrysophylla, Dougl. in Hook. Flor. Bor.-Amer. 2, p. 159. N. California and 

 Cascade mountains, 0. T. 



Corylus rostrata, Ait. Common in Oregon Territory. 



MYRICACE.E. 



Myrica Californica, Cham, d Schlecht in Linnea, p. 535. On the coast near San Fran- 

 cisco, California. 



BETULACE.E. 



Betula glandulosa, Michx. Sphagnous marshes, Cascade mountains, 0. T. ; latitude 44°. 

 Betula occidentalis, Hook. Flor. Bor.-Amer. 2, p. 155; Nutt. Sylv., p. 22. Banks of Psuc- 

 see-que creek, Des Chutes basin, 0. T. 



Alnus Oregana, Nutt. Sylv. l,p. 28, t. On the Sacramento and Columbia rivers. 

 Alnus viridis, DC. FL, Fr. 3, p. 304. Cascade mountains, 0. T. 



SALICACE^. 



Fopulus tremuloides, Michx. Flor. Amer. 2, p. 243. Along streams, N. California and 

 Oregon. 



Populus angustifolia, Torr. Ann. Lye. Nat. Hist. 2, p. 249. Banks of Columbia river. 

 Populcs monilifera, Ait. Banks of Sacramento river, California. 



Salix Hindsiana, Benth. PI. Hartw. No. 1956. Banks of Sacramento river, California. 

 Salix lasiandra, Benth. PI. Hariiv. No. 1954. Banks of Sacramento river, California. 

 Salix pentandra, Nutt. Sylva, 1, p. 61, t. 18. Banks of the Willamette river, 0. T. 

 Salix speciosa, Nutt. Sylv. 1, p. 58, t. 17. Banks of Columbia river, 0. T. 



PLATANACE^. 

 Plataxus racemosa, Nutt. Sylva, I, p. 47, t. 15. Sacramento valley, California. 



URTICACE^. 



Urtica gracilis, Ait. McCumber's Flat, N. California. 

 Urtica urens, ? Linn. Banks of Canoe creek, N. California. 



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