



PLATE 2. Variation in Trillium grandiflorum. [After BRITCIIER.] 



Mr. Britcher collected all these varieties at one time in a single very restricted area. Observe 

 that the plants differ in size of blossoms, color of petals (all white, A ; all green, (.', />, J\ or of 

 green and white in varying proportions, /, E, F, G. //,/); shape of petals (sessile, .7, B, C, H, I ; 



ated at different levels upon the stem, J, F, H, D, B, C ; often occurring just below the flower 

 bracts, A; in one case absent altogether, E) ; form of stem leaves (sessile, .-/, />', C, E; or with 

 petioles of varying lengths, D, F, /, H, J, G ; slender, //, or broad, ./) ; number of stem leaves 

 (one, G; or three, A, B, C, D, /', /, 7; or none, E) ; number of stalks from a single bulb 

 (one, A, B, C, D, E, F, G, j ; two, //, / ; or in some cases, not shown, three may be found). 

 The stamens and pistils also vary in form and in size, B, D, F, G, J. Probably no finer example 

 of variation in any plant has been described. 



