THE FRESHWATER ALG OF CEYLON, 129 
scissione; oosporis transverse ellipsoideis, oogonia prope complentibus; cellulis 
suffultoriis non tumidis; nannandribus parvis oboviformibus unicellularibus, in 
oogoniis sedentibus ; membrana cellularum vegetativarum dense et minute granu- 
lata, granulis spiraliter dispositis. 
Crass. cell. veget. 6-854; altit. 4-10-plo major ; 
»  Oogon. 27-914; ,, 255-26,; 
»  OOspor. 25-285; ,, 18-194; 
,  nannandr. UDI . 85 n. 
Hab. Paddyfields, Heneratgodha. Paddyfield between Kosgoda and Urahaighasma- 
hendai. 
This species differs from Cdogonium punctatostriatum, De Bary, in being nannan- 
drous, and in its very much smaller size. From (E. minus, Wittr., it is distinguished 
by being dicecious, nannandrous, and in its smaller size and relatively longer cells. 
20. (EDOGONIUM RETICULATUM, sp. n. GW. cellulis elongatis; oogoniis ovoideo-globosis ; 
oosporis globosis, cogouia non complentibus ; membrana oospore areolis hexagono- 
reticulatis ornata. 
Crass. cell. veget. 7:5-8 u; altit. S-13-plo major; 
»  oogon. 905; p Bae: 
»  OOspor. 204; X EOM 
Hab. Paddyfields, Heneratgodha. 
The material was very imperfect, but the extraordinary character of the oospores is 
somewhat noteworthy. Compare with Œ. arcyosporum, Nordst. et Hirn, and Q7. areo- 
latum, Lagerh. 
Order CONFERVOIDEJE ISOGA ME. 
Family ULVACE.E. 
Genus ENDopERMA, Kütz. 
21. ENDODERMA REINECKII, Schmidle, in Englers Bot. Jahrb. xxiii. 1896, p. 259, 
cum fig. 
Crass. cell. 15°5-44 u. 
Hab. In small pond, Peradeniya; epiphytic on Pithophora radians. 
This plant has only previously been recorded from Samoa, and, curiously enough, it 
was there found epiphytic on Pythophora Reineckit. 
Family ULOTRICHACE.E. 
Genus HormisciA, Fries; emend. Aresch. 
29 HoRMISCIA SUBTILIS, De Toni, Syll. Algar. i. 1889, pp. 159-160. Ulothrix subtilis, 
Kuetz. Phye. Germ. p. 197; Rabenh. Flor. Europ. Algar. iii. p. 365. 
