Oedogonieæ American», hucusque cognit». 
141 
crassit. cell, veget. 8—9 //, altit. 4—7plo majore; 
„ oogon. 36 „ „ 54 q; 
„ oospor. 31 „ „ 33 „. 
Hab. in Brasilia ad Lagoa Santa, ubi D:r E. War¬ 
ming legit. Cand. O. Nordstedt plantam, microscopice præ¬ 
paratam, mihi benevole communicavit. 
This species belongs to the few, which have the oogonia 
and oospores of a quite dissimilar shape, the oogonia ovate 
and the oospores spherical. The considerable size of the 
oogonia, when compared with the vegetative cells, is also 
characteristic. 
19. Oe. Pitlioplioræ nov. spec. 
Oe. monoicum (?), oogoniis singulis, globosis, poro foe- 
cundationis in parte oogonii superiore sito; oosporis oogo¬ 
nia complentibus, exosporio crasso lævi que ; spermogoniis (?) 
subepigynis; cellulis suffultoriis forma eadem ac cellulis 
vegetativis ceteris; 
crassit. cell, veget. 10—13 //, altit 2 1 / 2 —3plo majore; 
„ oogon. 27—30 „ „ 27—31//; 
„ oospor. 26—29 „ „ 24—28 „ . 
Hab. in India occidentali in insula St. Thomas, in 
Pithophora Cleveana Wittr. epiphyticum. Prof. P. T. Cleve 
legit 18 TTi 68. 
This species is distinguished especially through its 
thick and smooth exosporium. 
20. Oe. Sancti Thomæ Wittr. & Clev. in Wittr. 
Prodr. Monog. Oedog. pag. 40. 
Hab. in India occidentali in insula St. Thomas, ubi 
Prof. P. T. Cleve legit. 
21. Oe. obtruncatum Wittr. 
ß. ellipsoideum nov. var. 
Var. oogoniis longioribus, ellipsoideis, singulis vel binis 
terminalibus, operculo apicali apertis; cellulis suffultoriis 
eadem forma ac cellulis vegetativis ceteris. 
crassit. cell, veget. 17—23 //, altit. 3—4plo majore; 
„ oogon. 42—54 „ ,, 66—75//. 
