Ser. CHLOROSPERME. Fam. Nostochinee. 
Puate CXIII. 24. 
SPHHZROZYGA CARMICHAELII, Zarv. 
Gun. Cuar. “ Filaments free, simple, momiliform, consisting of a series of 
ordinary cells interrupted here and there by a cell of a different kind 
(connecting-cell ), which is generally of a larger size, and often ciliated.” 
Thw. Spores formed from the ordinary cells. SpHarozyea (4y.),— 
opaipa, a sphere, and ¢dyos, a yoke. The name Anabaina, applied to 
this genus by Bory, is pre-occupied for a genus of Luphorbiacea, by 
A. de Jussieu. 
SpuarozyGa Carmichaelii; “spores large, oblong, twice or thrice as long 
as broad, commencing to be formed from the cells nearest the con- 
necting one.” Thw. in litt. 
Bexonta torulosa, Carm. Alg. Appin. ined. Harv. in Hook. Br. Fl. vol. i. 
p- 379. Harv. Man. p. 167. 
ANABAINA marina, Bred. in An. Sc. Nat. 
Has. On decaying heaps of marine Algz, also in ditches of brackish water. 
Appin, Capt. Carmichael. Near the Menai bridge; also at Barmouth, 
and Penman Pool, near Dolgelley, Mr. Ra//s. Shorehampton, near 
Bristol, Wr. G. H. K. Vhwaites. 
Geogr. Distr. Probably throughout Europe. 
Descr. “In the beginning of autumn, vast quantities of filamentous Alge are 
detached from their places of growth, and deposited here and there along 
the shore in extensive fleeces. When these fleeces begin to decay, this 
plant makes its appearance in the form of a very thin gelatinous pellicle, 
of a vivid green colour, spreading over the surface of the decaying mass. 
The pellicle is made up of straight” (or slightly curved), “ brittle, monili- 
form filaments, one fourth of a line in length, and tapering at both ends.” 
Carm. Spores of considerable size, remaining green, or assuming a brownish 
colour, when mature. — 
I have compared specimens of Anabaina marina, Breb., re- 
ceived from Messrs. Ralfs and Thwaites, with Carmichael’s origi- 
nal Belonia torulosa; and find them to agree in every essential 
particular. This plant is unquestionably a Spherozyga, to all 
the individuals of which genus the specific name “ forw/osa,” 
which has the priority, is equally applicable. I have therefore 
dedicated this curious and beautiful parasite to the memory of 
its first discoverer, whose patient investigation of Cryptogamic 
plants has added so much to our knowledge of the more minute 
kinds. 
A, Fig. 1. SpH#RozyGa CARMICHAELII; appearance of the mass. 2. Filaments: 
—magnified. 
Prats CXIII. B. 
SPHAROZYGA THWAITESTI, Harv. (n. sp.) 
Sru#rozyea Thwaitesii; “spores elliptical, once and a half as long as 
broad, commencing to be formed from the cells most distant from the 
ciliated (connecting) one.” Thw. in litt. 
