172 S. B. PARISH 



Pseudotsuga macrocarpa Mayr, Wald. Nordam. 278. Hemlock 



Abundant on the sides of canons in the Upper Chaparral Zone. There 



are also a few trees on the north side of the mountains near Gold Mountain. 



A large tree, 75-90 feet high. 



Abies concolor Lindl. & Gord. Journ. Hort. Soc. 5: 210. White Fir 



Scattered throughout the coniferous forest, preferring moister soils, and 



attaining its best development in the Upper Transition and the lower part 



of the Canadian Zone. A noble tree, 100-150 feet high. 



CUPRESSACEAE 



Libocedrus decurrens Torr. PL Frem. 7, t. 3. Mountain Cedar 



Scattered throughout the coniferous forest of the Transition Zone, mostly 



in the moister soils of flats and ravines. A thick-based tree, 75-100 feet high. 



Juniperus californicus Carr. Rev. Hort. IV. 3: 166. Desert Juniper 



Occasional in dry soil in the Lower Chaparral and Lower Pinon Zones. 



A large shrub, but arborescent on the Mojave Desert. 



Juniperus occidentalis Hook. Fl. Bor. Am. 2: 166. Mountain Juniper 



Abundant on the lower slopes and dry flats of Bear and Holcomb Valleys. 



An irregular tree, 20-50 feet high. 



GNETACEAE 



Ephedra viridis Coville, Contr. Nat. Herb. 4: 220. 



A species of the Mojave Desert, ascending the Pinon Zone to Doble and 

 Rose Mine. 



SPARGANIACEAE 



Sparganium an gusti folium Michx. Fl. Bor. Am. 2: 189. 

 In pools, Bluff Lake, in the Canadian Zone. 



NAJADACEAE 



Potamogeton nutans Linn. Sp. PI. 126. 



Abundant, floating in ponds, and now in the reservoir. Bear Valley, in 

 the Upper Transition Zone. 

 Potamogeton pectinatus Linn. Sp. PI. 127. 



Frequent in shallow pools. Bear Valley. 



JTJNCAGINACEAE 



Triglochin maritima Linn. Sp. PI. 338. 

 Frequent in marshes. Bear Valley. 



ALISMACEAE 



Sagittaria arifolia Nutt.; J. G. Smith, Rept. Mo. Bot. Card. 6: 32, t. 1. 

 Emergent in pools, Bluff Lake. 



I 



