BOTANICAL GAZETTE. [ June, 
12. Stachys cordata ; a, outer stamens mature; 6, c,d, inner stamens 
mature; ¢, f, style in position, stigmas mature. 
_18. Brunella vulgaris ; a, the flower; 6, tips of the style and stamens 
enlarged. ~ ; 
x All figures are one-third larger than nature. 
Cambridge, Mass. 
BES, Description of a new fossil species of the genus Chara. 
= | F. H, KNOWLTON. 
Fossils that are now known to belong to the genus Chara 
e were described by Dufourny de Villers, under the name of 
alg ortex, as long ago as 1785.1 They were regarded by him 
rata described by Lesquereux’ from the Green River group 
~ at Florissant, Colorado s this species is founded upon 
leaf impressions, it lacks the precision which characterizes 
these species established upon the sporostegia or ‘fruits, 
are not absent fro 
‘: . 
s Pr; CO) A, White, of the Uni 
: 
1] 
° 
® 
oa 
° 
ba 
=} 
pid 
@ 
O 
Q 
o 
fo 
loom 
“S 
ra compressa n. sp, ( 
Fruit ( Sporostegium 
much depressed, the he gh 
fifth less than the Width; a 
or even slight] 
Spirals, as obs 
 -'Mem. Y' Acad. Jun. 17 
3 apex obtuse Fig. 1. Fig. 2. 
y depressed: number Of Craps coMPRESSA, 0. 5. 
785. 
: ®Ann. d. M - Vhist, nat. 
ae ‘Denys de Montfort Goo vol: 1X, 1807, p. 236, pl. xvii, fig. 7. 
Ms ‘a a. Mus. d’hict crauchylologie systematique. 
nn, 
: retaccous end net L XV, 1810, pl. 28. fig. 12, 
oii ary Floras, 1883, p. 135. pl. xxi. fig. 12. 
