270 THE AMERICAN MIDLAND: NATURALIST. 
May 30. Also on wet sandstone ledges at Grand Ledge, No. 
6561, June 10, 1923. 
Silene latifolia (Mill.) Britten and Rendle, var. pubescens 
(DC) n. comb. (Silene inflata var. pubescens DC. Fl. Fr. IV. 
p. 747; 1805). A variation of the species in which the leaves 
are conspicuously ciliate and whole plant more or less short 
hirsute. Banks near Whiteford Center, No. 6495, July 11. 
Nymphozanthus variegatus (Engelm.) Fernald. Mr. G. 8S. 
Miller, Proc. Biol. Soc. Wash. XV. (1902) 11-13, pointed out 
very characteristic differences between this species and the 
closely related N. advena (Ait.) Fernald. The most import- 
ant distinction lies in the petioles which in this species are flat, 
causing the leaves to lie flat on the water or when that re- 
cedes to lie flat on the ground; in N. advena the petioles 
are subterete and sooner or later raise their blades above the 
water. As this species occurs in Michigan, the blades are 
round-ovate or broadly oval usually around 16 to 22 cm long 
by 13 to 16 wide; the calyx is yellow with a reddish-purple 
base and the fruit is more or less purple. Keweenaw Co., No. 
139, July 20, 1884; Detroit, No. 139a, Sept. 3, 1892; Orion, No. 
139b, May 30, 1895; Billington, Farwell and Gladewitz, Lake- 
ville Lake, No. 6655, July 26, 1923. 
Var. lutescens, n. var. Blades of leaves oblong-oval, 30 to 34 
cm in length by 19 to 21 wide; calyx yellow throughout or 
greenish at the base within; otherwise like the species. This 
evidently is intermediate between the typical form of the spe- 
cies and N. advena, being similar to the latter in the color of 
its flowers and in the large size of its leaves, but it has the — 
large flowers, the purplish fruit and flat petioles of N. varie- 
gatus. Lakeville Lake, No. 6663, July 26, 1923. 
‘Nymphozanthus advena (Ait.) Fernald. This species is 
said to occur at Detroit and various other places in southern 
Michigan. While I haven’t found it at the places cited, it oc- 
curs in abundance both east and west of Pontiac. The only 
specimens collected were late in the season when the larger and 
better leaves had disintegrated. A few small leaves were gath- 
red and a small, green flower bud and a larger, yellow one two- 
thirds or. three-quarters grown; the subterete petioles are suf- 
