160 
Var. (?) LATIFOLIA. A spec. coll. by Dr. Antisell on the 
beach at Santa Barbara, Cal. There are spec. of the same thing 
in Herb. Gray at Cambridge, Mass., sent by Mrs. R. F. Bingham 
from Santa Barbara, and by Prof. Farlow from Monterey, by 
means of which I am able to make the following analysis; leaves 
5 to 12 mm. wide, ten to thirteen-nerved, with 7 or 8 striae be- 
tween the nerves; pist. flower with an ovary 4.mm., anda style 
3 mm. long; fruit costate, 4 to 5 mm. long by 3 mm. in diam., 
ribs about 25. The fruit, and indeed, the whole plant every way, 
is much larger than the common eastern form of Z. marina, 
which has a nutlet 2% to 3 mm. long, and about 1% mm. in 
diam., and leaves 3 to 4 mm. wide, and three and five-nerved. 
The California plant resembles an abnormal form from the river 
Auray, France, a spec. of which is in Herb. Gray, but without 
flower or fruit. 
61. . Z.-nana,. Roth; (Z.. minor, Nolte.) Spec: 2; -for., 
Schleswig and Belgium. <A spec. from Key West, Fla., coll. 
Blodgett, also appears to be this spec., but as it has no flowers 
or fruit, we cannot be certain. The fruit differs from that of 
Z. marina in being perfectly smooth. 
62. Phyllospadix Torreyt, Watson. Spec. sent by Mrs. 
R. F. Bingham from Santa Barbara, Cal. pe 
The tribe NAIAD24 is represented by JVaias. 
63. NV. flexilis, Rostk. et Schmidt. Spec. from Mass., N. Y., 
N. J., also Ex: Herb. Chapman labelled ‘‘ Northern States.’’ 
64. NN. microdon, A. Br. Spec. from Cuba, coll. C. Wright, 
No. 605. These are probably of the type spec. sent by Wright to 
Braun, and described by him in a paper read before the Nat. 
Hist. Soc. at Berlin, June 16, 1868. Spec. from Nicaragua, 
coll. C. Wright, in Exp. Ringgold and Rodgers, and labelled 
“ Caulinia flexilis.” Other spec. are from Monterey, and prob- 
ably this sp. from Chapman, Fla., labelled “ Caulinia fragilis,” 
and from Hale, Louisiana, labelled ‘“‘ NV. flexilis.” * One spec. 
from Texas, coll. J. Reverchon. 
Var. Guadalupensis, A. Br. C. Wright’s Cuban coll. 3717, 
one spec. 
“N. flexilis, var. (?) fusiformis, Chap.” The original spec. 
is in the Herb., but it is the same as WV. microdon, A. Br. In 
