208 CHAETOPHORACEAE 
The form described and illustrated under this name by Wolle 
is quite incompatible with the species of Kützing. He seems not 
to have noticed the essential phrase in the description of Raben- 
horst, * ramulis superioribus plerumque ternis fasciculatim 
aggregatis." ^ Certainly there is no fasciculate branching in 
Wolle's form: it appears to be more like our Myxonema ventri- 
07. 
STIGEOCLONIUM PROTENSUM (Dillw.) Kitz. Phyc. Germ. 198. 
FT Spec. Ale, 36%, 1840; lab. Phyc. 3: pi. r0. J. 2. 1853 
Wolle, F. W. Ale 112. AM. ror. f. 1-4. 1887. 
Conferva protensa Dillwyn, Brit. Conferv. pl. 67. 1806. 
Possibly Wolle's figures represent this species, but as no speci- 
mens that could be identifed with it have been seen, this form 
must be considered questionable. 
STIGEOCLONIUM FASCICULARE Kütz. Bot. Zeit. 5: 177. 1847; 
Tab Five 3: 4 4. f r 18554 Rabenh Flor Eur. 
Ale 3: 380. 1868. Wolle, F. W: Ale 114. P. 9g. f. T. 
1887. 
The form illustrated by Wolle is very different from Kützing's 
species. The phrase in Rabenhorst's description “filis ramisque 
dichotomis," has been made by Wolle to read “ branching mostly 
opposite dichotomous,’ thus changing entirely the character of the 
description, to say nothing of bringing together two incompatible 
features. 
Stigeoclonium fasciculare Phyc. Bor. Am. 67 is similar to 
Wolle’s form in its opposite branching and appears to be nearly 
related to Myxonema lubricum. 
In the specimen issued under this name by Miss Tilden (Am. 
Alg. 20) we can find nothing but Chaetophora elegans. 
We have seen no American specimens that could properly be 
considered Stigeoclonium fasciculare, though our Myxonema glom- 
eratum approaches it in general character. 
STIGEOCLONIUM FASTIGATUM Kütz. Spec. Alg. 356. 1849; Tab. 
Phyc. 3: M. 17. f. r. 1853. Wolle, F. W. Alg. 114. pi. 100. f. 1. 
1887. Saunders, Flora of Neb. 1 : 64. pL 18, f. 2. 1894. 
STIGEOCLONIUM RADIANS Kütz. Spec. Alg. 354. 1849; Tab. 
Phys. 3: 9. 7. f. 2. 1853. Wolle, E W. Alg, 115. ai 102. f. 4. 
1887. 
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