BULLETIN 
TORREY BOTANICAL CLUB. 
Vol. XIV.) New York, June, 1887. (No. 6 
A Descriptive List of Staten Island Diatoms,* 
BY i, hy SCHULTZE: 
Plate LXIX. 
NAVICULA VIRIDIS, Kiitz. 
Navicula viridis, Van H., Syn. Diat. Bel., pl. V., fig, 5; Sm., Syn., p. 54, 
pl. XVIIL., fig. 163; Kiitz., Bacill., p. 97, t. IV., fig. 18, t. XXX., fig. 12; Schum., 
Diat. d. H. Tatra, p. 71, t. IIL., fig..47; O’Meara, Rep. on th- Irish Diat., p. 341, 
pl. XXX., fig. 3; Ralfs in Prit. Infus., p. 907, pl. IX., figs. 135, 136; Rab. Siiss. 
Diat., p, 42, t. VI., fig. 4; Brun. Diat., p. 83, pl. VIII., fig. 5. 
Navicula viridula, Kii'z., Bacill., XXX., 47; Cl. and Gr., Arct. Diat., p. 33, t. 
Ii, fig. 35; Van H., pl. VIL, fig. 25. 
Pinnularia viridula, W. Sm., Syn., Vol. 1., p. 57, pl. XVIIL, fig. 175. 
Bacillaria viridis, Nitsch, t. V1., figs. 1-3. 
Pinnularia viridis, W. Sm. 
Valve elliptical linear, with rounded apices; costz parallel, 
broad, slightly radiant, shorter opposite the central nodule; a 
longitudinal, free, median space: 
Hab.—F resh water, frequent. Clifton, New Brighton, New 
Dorp. (Plate LXIX., fig. 1.) 
This species has been attributed to various authors, but if 
Kiitzing be right in supposing it to be the Bacillaria viridis, 
Nitsch, 1817, it should be attributed to the last named author, 
as Heiberg has done. Smith assigns the species to himself, al- — 
though regarding it as == NMavicula viridis, Ehr. Rabenhorst 
attributes it to himself, while Grunow attributes it to Kiitzing. 
_ Grunow makes this form the type of the group Virides, but 
seems to regard Navicula major, which he includes among the 
Nobiles, to be only a variety of NMavicula viridis. Speaking of 
this former he says: “It appears to me to be only a variety of 
Nav. viridis ; tolerably numerous figures which lie before me_ 
* Continued from page 73. 
