MICROSPORA 173 
matophore, which permits a clear view of the nucleus, while in the 
related species, the nucleus is distinctly seen only after fixation or 
staining. Furthermore, this form always gave a very feeble test 
for starch, while the other species are generally rich in starch. 
Even in the field the much lighter green color was noticeable. 
The recent collection made in Vermont only confirms our view as 
to the distinctness of this species. 
As to the definition of M. WZztrocki? there is some confusion; for 
in Professor Wille’s original description the species had a diameter 
of 12-20 رم‎ while in his German revision of the paper he increased 
it to read 20-24 v. The specimen in Wittr. & Nordst. Alg. Exsic. 
422, seems to agree with the first description. The details given 
in the revised description, however, together with the accompany- 
ing illustrations, leave no doubt that our form is to be identified 
with this species. 
5. Microspora FLoccosa (Vauch.) Thuret, Ann. Sci. Nat. Bot. 
111: d4: 221,222. M. ry. 7. 4-7. 1850. Cooke, Brit. P. W.: 
Alg. 136. pl. 53. f. 3. 1883. DeToni, Syl. Alg. 1 : 226. f. f. 
1889. De Wild. Flor. Alg. Belg. 46. 1896; Flor. Buit. 63. 
1900. 
Prolifera floccosa Vaucher, Journ. de Phys. 52: ûl 4. f. 12. 
1800; Hist. Conferv. 131. ۸۰ 14. f. 3. 1803. (?) 
Conferva floccosa Agardh, Disp. Alg. Suec. 29. 1812; Alg. 
Dec. 19. 1815; Syn. Alg. Scand. 79. 1817; Syst. Alg. 89. 
1824. (?) Wolle, F. W. Alg. 140. a 120. f. 27-29. 1887. 
Conferva fugacissima Lyngb. Tent. Hyd. Dan. pl. 26. f. 1-4. 
1819. (?) 
Lyngbya floccosa Hass. Brit. F. W. Alg. 223. pl. 60. f. r, 2. 
1845. (?) 
Hormiscia floccosa Derb. & Sol. Mem. Phys. Alg. 16. ai 5. f. 
1-8. 1856. (?) 
Not C. floccosa Lyngb. Tent. Hyd. Dan. 138. ۸۰ 46B. 1819 
(=Stichococcus?). Kitz. Spec. Alg. 371. 1849; Tab. Phyc. 3: 
pl. 43. f. 3. 1852. Kirchn, Keep Flor. Schles. 2' : 79. 1878. 
Wille, Ofvers. Vet.-Akad. Förhand. 1881°: ۸ ro. f. 47-49. 
1881. Hansg. Prod. Alg. Bohm. 1: 75. 1886. 
Not M. floccosa Rabenh. Krypt. Flor. Sachs. 1: 245. 1863; 
Flor. Eur. Alg. 3: 321. 1868. 
