H 
HERPOSTEIRON 229 
Aphanochaete globosa Wolle, F. W. Alg. 119. pl. ros. f. 
5. 1887. Nordst. Svensk. Vet. Akad. Hand. 22°: 15. 1888. 
Hanse. Flora, 71: 216. 1888.  DeToni, Syll Ale 1: 180. 
1889. Saunders, Flora of Neb. I: 63. Al. 77. f. 2. 1894. 
Not Nordstedtia globosa Borzi, Nuova Notarisia, 3: 50. 1892, 
Cells 14-16 in diameter (12-18 » Klebahn), loosely asso- 
ciated, inclosed in a subglobose gelatinous mass ı mm. or more in 
diameter. 
«M Ts: Lake Quinsigamond " (G. E. Stone). 
* New Jersey: Hammonton ” (F. Wolle). 
* NEBRASKA : Cherry county " (De Alton Saunders). 
We have seen no specimen of this species, but the descriptions 
of Wolle and Saunders leave little room for doubt that they actually 
collected it. 
The genus Nordstedtia Borzi was supposedly founded on 
Aphanochaete globosa (Nordst.) Wolle, but Dr. Klebahn found by 
comparison of original specimens of Nordstedt's species with draw- 
ings of Nordstedtia furnished by Borzi, that the latter represented 
an entirely different plant. 
IX. HERPOSTEIRON Nägeli; Kütz. Spec. Alg. 424. 1849 
Aphanochaete A. Braun, Betracht. über Erschein. Verjung. 
196. 1851. Huber, Ann. Sci. Nat. Bot. VII. 16: 278-290. 1892. 
Thallus microscopic, composed of simple or irregularly 
branched, creeping filaments. Cells bearing on the dorsal or ex- 
posed surface one or more elongated, hyaline, inarticulate bristles, 
which are inflated or bulb-like at the base but not sheathed. 
Chromatophore covering the cell-wall more or less completely, 
inclosing one or more pyrenoids. i 
Asexual reproduction by means of 4-ciliate zoöspores gener- 
ally furnished with a red eye-spot, 1—4 produced in a cell. 
Sexual reproduction by conjugation of a large female, and 
much smaller male gamete, both 4-ciliate. 
Inhabitants of fresh water. Type, H. confervicola Nag. [Etym. 
ora, to creep, and 022200 rigid. ] 
The researches of Huber and Klebahn leave no room for 
doubt that the two types, Herpostetron confervicola Nag. and 
Aphanochaete repens A. Braun, are the same plant. These two 
investigators, however, reject the earlier name proposed by Nageli, 
WE 
