88 BOTANY. 



ARTHOCNEMUM FRUTICOSUM, var. CALIFORNICUM, Moq. in DC. Prodr. 13, pars 2, p. 151, 

 Suisun bay, California. 



POLYGONACE^]. (By JOHN TORREY.) 



POLYGONUM AVICULARE, Linn. Dalles of the Columbia ; probably introduced. 



POLYGONUM AMPHIBIUM, Linn. var. TERRESTRE, Torr. Fl. N. St. p. 403. McCumber s ; July 29. 



POLYGONUM TENUE, MicJix. Fl. 1, p. 238. Klamath lake. 



POLYGONUM COARCTATUM, Dougl. in Hook. Flor. Bor.-Amer. 2, p. 133. 



KUMEX MARITIMUS, Linn. Marshes, Klamath lake. The specimens are scarcely two inches 

 high, and yet are loaded with mature fruit. 



KUMEX DOMESTICUS, Hartm. ; Hook. Fl. Bor.-Am. 2, p. 129. McCumber s ; grows in water. 



ERIOGONUM MICROTHECUM, Nutt. PI. Gamb. in Jour. Acad. Phil. (n. ser.} 1, p. 162. Psuc-see- 

 que creek, 0. T.; September. 



ERIOGONUM NIVEUM, Dougl. in Benth. Eriog. Fort Dalles, 0. T.; October 5. 



ERIOGONUM FLAVUM, var. CRASSIFOLIUM, Benth. Mss. E. crassifolium, Benth. in Hook. PI. Bor. 

 Amer. 2, p. 134, t. 176. 



ERIOGONUM POLYANTHUM, Benth. in DC. Prodr. Fort Reading and Hat creek ? This species 

 was found also by Mr. Brackenridge and by Col. Fremont in California. 



ERIOGONUM NUDUM, Dougl. in Benth. Eriog. McCumber s, N. California. 



LAURACEJE. 



OREODAPHNE CALIFORNIA, Nees. Tetranthera? Californica, Hook. & Am. Bot. Beech, p. 159. 

 Laurus? regia, Dougl. in Comp. Bot. Mag. 2. Umbellularia Californica, Nutt. Sylv. ~L,p. 87. 



LORANTHACE^. 



PHORADENDRON FLAVESCENS, var. PUBESCENS, Engel. in Gray, PL Lindh. 2, p. 212. Parasitic on 

 JEsculus Californica, near Benicia ; July. 



ARCEUTHOBIUM OXYCEDRI, Bieb.; Hook. Flor. Bor.-Amer. 1, p. 278, t. 99. Common on Pinus 

 contorta in northern California and Oregon. 



CALLITRICHACE^. 

 CALLITRICHE VERNA, Linn. San Francisco, California ; in water. 



EUPHORBIACE^E. 



EREMOCARPUS SETIGERUS, Benth. Bot. Sulph. p. 53, t. 26. Croton setigerum, Hook. Flor. Bor. 

 Amer. 2, p. 141. Gravelly banks of Sacramento river, Cal. The growing plant very fragrant. 

 EUPHORBIA MACULATA? Linn. Fort Dalles, 0. T.; introduced? 



NYCTAGINACE^B. 



ABRONIA MELLIFERA, Dougl.; Chois. in DC. Prod. 13, 2, p. 435. Flowers rose-colored, pretty. 

 Shores of San Pablo bay, Cal. 



ABRONIA ARENARIA, Menz.; Cfiois. in DC. Prod. 13, 2, p. 435. Flowers yellow, fragrant. Sandy 

 beaches, near San Francisco, Cal. 



CUPULIFER^. 



QUERCUS AGRIFOLIA, Nees, in Ann. Sci. Nat. 3, p. 271. Common in Sacramento valley. 



