OF ARTS AND SCIENCES: FEBRUARY 13, 1872. 379 



77. Rhamnus Purshianus DC- ; Hook. 1. c. t. 43. 



78. Ceanothus velutinus Dougl. in Hook. 1. c. t. 45. In fruit. 



79. Ceanothus Oreganus Nutt. in Torr. & Gray, Fl. 1, p. 265. 



80. Acer macrophyllum Pursh, and 81. A. circinatum 

 Pursh ; both in fruit. 



82. Rhus diversiloba Torr. & Gray, 1. c. R. lobata Hook. 1. c. 

 t. 46. In fruit and flower. 



83. Thermopsis fabacea R. Br., var. Montana Gray. T. mon- 

 tana Nutt. in Torr. & Gray. 



84. Lupinus bicolor Lindl., which is likewise L. min-anthus 

 Dougl. 



85. Lupinus polyphyllus Lindl. Bot. Reg. t. 1097. 



86. Lupinus latifolius Agardh, Syn. Lup. ; a variety, or some 

 species near it. 



87. Lupinus leucophyllus Lindl. Bot. Reg. t. 1124. 



88. Lupinus ornatus Dougl., and 89, L. foliosus Nutt., in 

 small quantity. 



90. Lupinus laxifolius Dougl., by the calyx ; but a remarkable, 

 rather densely flowered variety. 



91. Lupinus parviflorus Nutt. in Torr. & Gray, Fl. 1, p. 375. 



92. Lupinus minimus Dougl. in Hook. Fl. Bor.-Am. 1, p. 163. 



93. Lupinus holosericeus Nutt. in Torr. & Gray, Fl. 1, p. 380. 

 In fruit. 



94. Trifolium eriocephalum Nutt. in Torr. & Gray, Fl. 1, 

 p. 313. 



95. Trifolium Macr^ei Hook. & Arn. Bot. Beech. T. albopur- 

 pureum Torr. & Gray, 1. c. 



96. Trifolium ciliolatum Benth. PI. Hartw. Not before found 

 north of California. The rhachis is often prolonged into a filiform tip, 

 projecting much beyond the head. 



97. Trifolium gracilentum Torr. & Gray, 1. c. : a slender 

 variety. 



98. Trifolium cyathiferum Lindl. ; Hook. Fl. Bor.-Am. t. 50. 



99. Trifolium microdon Hook. & Arn. Bot. Beech, t. 79. 



100. Trifolium microcephalum Pursh ; Torr. & Gray, 1. c. 



101. Trifolium pauciflorum Nutt. in Torr. & Gray, 1. c. 



102. Trifolium fimbriatum Lindl. Bot. Reg. t. 1070; small 

 forms, with broad leaflets. 103. Var. angustifolium. T. tridenta- 

 ium Lindl. Bot. Reg. 



