APPENDIX. 



17. Ra.nlncli.L's aqlatilis, L., var. stagnai'ilis, DC. (K. di- 

 variratus^ of Gray's Manual.) 



"Frequent forms occur connecting this with the variety tricho- 

 phyllits. It can hardly be R. divaricaUts, Schrank, as European 

 and Asiatic specimens of that species show a well-defined lamina to 

 the segments of the leaves, while in American specimens they are 

 always filiform." IVa/son's Rep. in King^ s Exp. 

 tXEOMK, L. 



Sepals distinct or somewhat united. Stamens 6 or rarely 4. Torus 

 minute. Pod linear or oblong, subsessile or stipitate. — Annual herbs 

 or shrubs with digitate or simple leaves and racemed or solitary 

 flowers. Beiith. &^ Hook. 



83. C. INTEGRIFOLIA, Torr. & Gr.— Annual, somewhat glaucous, 

 2'^-3'-' high, widely branching; leaves 3-foliolate; leaflets lanceolate, 

 (the lower-most oblong) entire, submucronate; racemes sometimes 

 nearly I^ long; flowers large, showy, reddish purple, rarely white; 

 sepals united to the middle, persistent, segments triangular- acumi- 

 nate; petals with very short claws; stamens equal; pods oblong- 

 linear, compressed, much longer than the stipe. Flor. Col., Port. S^ 

 Co-Ill. 



9:. Viola Canadensis, L. — As yet found only at Decorah. Our 

 plant varies from the typical one in having much smaller pink flow- 

 ers, whose lateral petals are not bearded; as well as in general as- 

 pect, which is decidedly like \'. pubescens. 



124. Portulaca retusa, Engel. — Like P. oleracea, but greener, 

 and the stem more ascending, sometimes covering a space several 

 feet in diameter; leaves usually smaller than the common species; 

 sepals obtuse, broadly carinate winged; petals yellow; stigmas 3 or 4; 

 capsule 2jl^"-3" long, broader in proportion; seeds more strongly 

 tuberculate than in P. oleracea. Flor. Cal. 



131. Callirrhoe involucrata. Gray. — Hirsute;, stem branch- 

 ing, procumbent; leaves deeply 3-5-parted, covered with stellate 

 hairs, segments linear-lanceolate, laciniately 3-5-toothed; peduncles 

 erect, I -flowered, longer than the leaves; flowers few in a loose pan- 

 icle, about i)^' in diameter, axillary, scarlet; bracteoles 3, linear-lan- 

 ceolate, % the length of the deeply-parted calyx; carpels numerous, 

 hairy, not wrinkled. Flor. Col., Port. &• Coul. 



