( 'oamariv/m \ w. DB8M1 m \> i r | \\ est). 
Soc. 2nd ser. 7. 61, t. vii. f. 21), bul il 1- 1 isilj distinguished by its 
Bhortei cells, its smaller size, its round (nol triangular) Bcrobiculations 
surrounding the granules, as well as it > wider apex. 
This is il nl\ species we know which has the two opposite 
of tin- hexagons of Bcrobiculations Burronnding each granule, horizon 
tally disposed. 
II. C. margaritatum Eloy & Bias, in Journ. Bot. xxiv. 194 
(1886) j Eloy in Ann. Scott. Nat. Hist. L67, t. ii. f. 12(1894). 
('. latum lll'ili. \ a l\ uni n/" ritu I /' /// lailld. Hi \m;i Acta R. 80C. 
Scient. dps. s< r. 3, riii. 26 1 1871 I. 
Forma minor Boldt. in Bih. till Sv. Vet. Akad. Handl. Bd 13, 
Aid. 3, no. 5, 26 (1888) ; W. el G. 8. Wesl in Journ. Bot. 1897, 
p. L21. 
Libongo Ad marginea Bum. Lifune ; 8ept. 1858. No. 204. 
!■_'. C. Portianum Arch, in Q. J. .M. S. mi. 235 6, b. si , 
(I860); in Pritch. [nfus. 733 (1861); Etabenh. Fl. Europ. Alg. 
iii. 160 I L868). 
\'ar. orthostichum Sclinii.llc in Bericht. Deutsch. Bot. Gi Bd 
\i. Heft. |u. 54:9, 1. sxviii. I'. 7 (1893). Forma minor W. el Q 
S. Wesl in Journ. Bot. 1897, p. 121, t. 368, t. 9. 
Libongo. A<1 marginea flum. Lifune ; Sept. 1858. No 204. 
This approaches C. nephroidetm R03 Bias, in Ann. Scott. Nat. 
Hist. 1894, 169, t. ii. f. :;.. whirl, seems to differ from C. Portianum 
var. nephroideum Wittr. both in its smaller size and in the regulai 
arrangement of its granules. 
13. C. trachycyrtum Eteinsch, Contrib. Alg. el Fung. 83, t. xviii. 
f. 1 i L875); W. el G. S. Wesl in Journ. Bot. 1897, p. 121. 
Huilla. Inter Porphyrosiphonem Notarisii Evtitz. in u<li- Bylvaticis 
et apricis inter Monino el lac. Ivantala ; April I860. No. 14. 
II. C. punctulatum Breb. in Mem. Soc. Sciences Nat. Cher 
bourg, iv. L29, 303, (. i. I'. 16(1856) ; Klebs in Schrift. phys.-okon. 
Gesellsch. Kbnigsberg, \x. 37, t. iii. f. 50, 51 | 1879) ; W. el G S. 
W< si l.C. 
Hi 1 1.1. a. — In rivulis prope Lopollo ; May I860. No. 187. 
Var. elongatum Klebs, I.e., t. iii. F. 53; W. el G. S. Wesl in 
Journ. Bot. 1897, p. L22. 
Hi 11 1. \. In aliginosifl editioribus prope Humpata, Bmpalanca el 
Lopollo : May I860. No. 15. 
I."). C. concentricum W. II. Turn, in K. Sv. Vet. AJkad. Handl. 
Bd. 25, do. 5, 62, t. Lx. f. I I i I 
Var. radiatum W. et G. 8. Wesl in Journ. Bot. 1897, p. 122, 
t. 368, f. 10. 
Hi hi \.- In uliginosis editioribus prope Humpata, Bmpalanca <t 
Lopollo : .May I860. No. 15. 
46. C. Blyttii Wille in Vid. Selsk. ForhandL Christiania, no. I I. 
25, t. i. 1'. 7 (1880); W. el G. S. Wesl in Journ. Bol 
p. 122. 
Libongo. Ad marginea flum Lifune; Sept. 1858 N" 204. 
