230 CHAETOPHORACEAE 
on the ground that his description is incomplete and even inac- 
curate in certain respects. The identification of his plant with 
that later described by Braun as Aphanochaete repens rests upon 
authentic drawings by Nageli, but as these were not published 
with the description, the evidence furnished by them on a matter 
of priority is not admitted by Klebahn and Huber. From an 
American point of view, these original drawings, even though un- 
published, furnish as valid evidence in regard to the character of 
Nageli’s species as would be furnished by specimens from his her- 
barium. 
Furthermore, on the very ground upon which it is alleged that 
Nageli’s genus should be abandoned, there is even more reason 
for rejecting Aphanochaete A. Braun. For in two important 
points, namely, the description of the bristles as articulate and the 
zoöspores as biciliate, Braun’s characterization is faulty. These 
inaccuracies gave rise to the confusing and untenable arrangement 
by Hansgirg (88, '93) (which was unfortunately adopted by 
DeToni and by Wille in Engler & Prantl) of the two genera, 
Herposteiron (Nàg.) Hansg. (Aphanochaete A. Br. non Berthold) and 
Aphanochaete (Berthold) Hansg. non A. Br. 
The identity of the types of these two so-called genera is suf- 
ficiently evident by a comparison of Nageli’s drawings, published 
by Huber, and Berthold's well-known figures. 
There is, then, no good reason why the name Zferposteiron 
confervicola Nag. should not be retained. 
ہم 
. HERPOSTEIRON CONFERVICOLA Nägeli; Kütz. Spec. Alg. 424. 
1849. Hansg. Flora, 71: 216. 1888; Phys. und Phyc. Unter- 
such. 243. 1889. Kirchn. Mik. Pflanz. 11. AL 2. f. 23. 1891. 
Huber, Ann. Sci. Nat. Bot. VII. 16: 286. pl. .و‎ f. 6, 7. 1892 
[fig. “aprés Nägeli” ]. Saunders, Flora of Neb. 1: 63. fl. 
22. f. 1. 1894. Möbius, Abhand. Senckenb. Nat. Gesell. 18: 
322. pl. 2. f. r. 1894. 
Aphanochaete repens A. Br. Betracht. ü. Erschein. Verjung. 
196. 1851. Rabenh. Flor. Eur. Ale 3: 391. f. 774. 1868. Wood, 
Hist. F. W. Ale 212. A. rg. f. 5. 1873. Berthold, Nov. Act. 
Acad. Leop. Car. 40: 214. pl. 18. f. 2-5. 1878. Kirchn. Krypt.. 
Flor. Schles. 2': 71. 1878. Cooke, Brit. F. W. Alg. 197. ۰ 
