294 THE JOURNAL OF BOTANY 
annulo spinarum parvarum ad apicem et in centro annulorum cum 
spina breve tenue bifurcata instructe. Diam. zygosp. sine verruc. 
Ps: 9.) 
We give a figure of a a nyeeeate ‘of this species obtained from 
amongst Utricularia minor. It is a very beautiful zygospore, and 
not unlike that of C. punctulatum Bréb. 
18. Cosmarium Loeiense Bissett in Journ. Roy. Mier. Soc. 1884, 
. 194, t. v. f. 4. Quite recently this species has been recorded by 
Borge Fite Cuba (cfr. Bih. till K. Sv. Vet.-Akad. Handl. 1899, 
Bd. 24, Afd. iii. no. 12, p. 19, t.i. f. 21), that author — and 
cutie what he considers to be the true plant. ust, however, 
entirely disagree with him in _ as his West Peien: Cosmarium is 
by no means typical C. stk We have observed this species 
e 
granules on his plant are also too few in number 
Po camimerie Favum West & G. 8. West in Ai. Linn. Soc. 
2, vol. v. p. 250, t. xv. f. 5,6. Schmidle has recently 
peaned “this species as a variety of C. margaritatum (Lund.) Roy & 
Biss. (cfr. Schmidle in Bih. till K. Sv. Vet.-Akad. Handl. Bd. 24, 
Afd. iii. no. 8, p. 36), but his reasons for this we are at a loss to 
Ake We have sage large numbers of C. margaritatum 
many a of the world, and, as we pointed out when we 
Recados! it, C. Favum a as the outward form of that species 
(cfr. also Roy ‘& Biss. in Ann. Scot. Nat. Hist. 1894, t. ii. f. 12). 
Apart from this, the peculiar external sculpture of the cell-wall, 
which consists of a ian arge number of subhexagonal depressions 
20. = lens Se 
‘Lappmark nu. Vesterbott. Siissw.-alg.,’ Bik, till K. Sv. Vet.-Akad. 
Bd. 24 
Handl. 4, Afd. iii. no. 8, p. 36, ik ‘ 51. We fail to see 
any difference a Hes as lant and numerous specimens of 
C. cymatopleurum Nordst. var. tyrolicum Nord We have pre- 
viously shown that Mae Schmidle described as ‘ C. subochthodes ” 
was partly S Se aoa aig var. tyrolicum and partly C. Botrytis 
var, ee 
OSMARIUM DELICATISsimum Lemmermann, ‘ Beitr. Kenntn. 
Plankionalg, % Pages Centralbl. Band Ixxvi. 1898, p. 4 (sep.). 
e description of this —— is so meagre that 8 will answer 
oes not describe any of them. It is imperfect daseeiplions of this 
kind that we deplore, as they are of no use to true systema tig 
