142 
Y. ß. Wittrock. 
Hab. in Venezuela in stagnis inter Valle et Bassot a, 
in specie quadam sterili generis Pithophorce epiphyticam. 
Hanc plantam cel. Gollmer legit 18if55; cel. A. Gtrunow 
mihi benevole communicavit. 
A more complete knowledge of this variety will per¬ 
haps show it to he an independent species. The principal 
form which grows in India, occurs also epiphytically on a 
Pithophora. 
22. Oe. punctatum nov. spec. 
Oe. oogoniis’ singulis, raro binis, suboboviformi-glo- 
bosis, poro foecnndationis in parte superiore oogonii sito; 
oosporis subglobosis, oogonia non plane explentibus; exo- 
sporio verruculoso-punctato; cellulis suffultoriis eadem forma 
ac cellulis vegetativis ceteris; 
crassit. cell, veget. 18—22 g, altit. 2 V a —3 Vjplo majore; 
„ oogon. 43—45 „ „ 52—63 ^ ; 
oospor. 41—42 „ „ 43—46 
Hab. in Mexico ad Vera Cruz, in consortio Oe. obo- 
viformis n. sp. et Oe. cyathigeri Wittr. ß ornati n. var. 
Cel. F. Müller legit 18|53. 
This species shows some resemblance to the irish Oe. 
Hutchinsice Wittr.; but is well distinguished from it through 
smaller oospores when compared to the oogonia, through 
the supporting cell not being tumid, and through smaller 
dimensions upon the whole. 
23. Oe. plagiostomum Wittr. 
ß. gracilius nov. var. 
Var. gracilior, cellulis vegetativis brevioribus; 
crass, cell, veget. 22—25 /U, altit. 2—3plo majore; 
„ oogon. 38—42 „ „ 40—57 
,, oospor. 36—39 „ „ 38—44 „ 
„ membr. oospor. 3—3 1 / 5 „ . 
Hab in Mexico ad Orizaba, ubi cel. F. Müller legit 
18^53; sec. specimina in museo botanico universitatis Argen- 
toratensis asservata. 
