148 MESSRS. W. WEST AND G. S. WEST ON 
104. EvasTRUM SINUOSUM, Lenorm. in Ralfs, Brit. Desm. p. 85, t. 13. figs. 5a, b, d. 
Hab. In stream, Victoria Park, Colombo. Paddyfield between Kosgoda and Ura 
haighasmahendai. 
Var. REDUCTUM, West & G. S. West, in Journ. Bot. xxxv. 1897, p. 83; Journ. Linn. 
Soc., Bot. xxxiii. 1897, p. 160, t. 8. fig. 17. 
Hab. Muddy bottom of pool at foot of Hakgala Rock (altit. 6000 ft.). 
Var. SUBJENNERI, var. n. (Pl. 19. fig. 17.) Var. minor, tumoribus uniformibus 11 in 
semicellula unaquaque. 
Long. 544; lat. 304; lat. lob. polar. 15 u; lat. isthm. 9 n. 
Hab. Paddyfields, Heneratgodha. 
The eleven protuberances are arranged in the following manner :—There is a circle of 
six round a central one, and two within the undulations of each lateral margin. It is 
rather remarkable that this variety possesses the same number of protuberances as 
E. Jenneri, Arch., but the outward form of EL sinuosum. 
Var. CEYLANICUM, var. n. (Pl. 19. fig. 16.) Var. lobo polari majore elongato et rotundo- 
dilatato, cum scrobiculis magnis Vis eme ra. binis (verticaliter dispositis) in 
centro semicellularum. 
Long. 76 u; lat. 32,4; lat. lob. polar. 19,4; lat. isthm. 3 u; crass. 23 y. 
Hab. Paddyfields, Heneratgodha. 
In both these varieties there is a small but prominent scrobiculation in the E of 
each protuberance. 
105. EUASTRUM LONGICOLLE, Nordst. in K. Sv. Vet.-Akad. Handl. xxii. no. 8, 1888, 
p. 38, t. 3. fig. 5. 
Var. CAPITATUM, var. n. (Pl. 19. fig. 24.) Var. angulis basalibus semicellularum 
incrassatis et lateribus inferioribus divergentibus, lateribus superioribus plus concavis, 
lobo polari late dilatato (capitato); scrobiculis distinctis ad lobum polarem et intra 
angulos laterales; tumoribus et scrobiculo magno ut in forma typica. 
Long. 87; lat. 38 u; lat. lob. polar. 23-26; lat. isthm. 10 4. 
Hab. Paddyfields, Heneratgodha. 
106. EvaAsTRUM INTERMEDIUM, Cleve, in Ófvers. Sv. Vet.-Akad. Fórh. 1863, no. 10, 
p. 484, t. 4. fig. 1; Lund. in Act. R. Soc. Scient. Upsala, ser. 3, viii. 1871, p. 21, 
t. 2. fig. 4. 
Var. compactum, var. n. (Pl. 19. figs. 14, 15.) Var. cellulis diametro circiter duplo 
longioribus, angulis basalibus rotundo-truncatis, collo lobi polaris latiore, angulis 
superioribus rotundatis, in centro semicellularum cum scrobiculo magno. 
Long. 58-6154; lat. 31-33,4; lat. lob. polar. 20,4; lat. isthm. 9-9:5,; crass. 
19-22 p. 
Hab. Paddyfields, Heneratgodha. 
