102 MR. J. GROVES ON CHAROPHYTA 
cannot well belong to any of the foregoing species It is an extremely 
slender graceful plant with lax whorls (attaining a diameter of 4 em.) and 
long internodes. The branchlets are usually 3, occasionally 4, times fureate, 
the rays gradually diminishing ín length, the primary about half that of the 
entire branchlet. The dactyls are about 25 p in diameter, the ultimate cell 
being long, slender, and acute. There are a few young antheridia on the 
specimen, the only one Mr. Blow was able to find. 
CHARA CORALLINA, Willd. in Mém. Acad. Roy. Sc. Berl. 1803 (1805) 
p- 89. 
Jungle-pool, near Kandy, 5th Nov. 1895, no. 25; shallow tank, Tangalla, 
8th Jan. 1898, no. 40. Two sterile plants collected at Tirupane, 7th & 9th 
Noy. 1895, nos. 26 & 27, apparently also belong to this species. 
The plant from Kandy has on the older parts well-developed fruits, the 
oospores measuring about 825 ulong, 550 u thick (excl. ridges); on the younger 
branches small antheridia. The plant from Tangalla has well-developed 
antheridia (diameter c. 500 p) but no matured oospores. 
C. corallina was previously collected in Ceylon by Trimen. 
C. FLACCIDA, Braun in Hooker's Journ. Bot. i. (1849) p. 296. 
At sea-level near Panadura, 16th Nov. 1895, no. 28 (no ripe fruit) ; 
shallow tank, Tangalla, 8th Jan. 1898, no. 41 ; paddy-field, near Dikwella, 
9th Jan. 1898, two forms, nos. 42 & 43. 
There is often considerable difference in the length of the stipulodes, even 
on the same plant. In one of the forms from Dikwella (no. 43) they are all 
extremely short and the spine-cells are minute, in these respects agreeing 
with C. psilopitys, Braun. The branchlets are usually short with only 3-4 
segments, the oospores are short and broad and of a very dark brown, in 
marked contrast to the golden-brown of those of the Tangalla plant, which is 
typical of C. flaccida. 
C. Hypropirys, Reichenb. in Mössler’s Handb. ed. 3 (1834) p. 1670; 
Braun in Hooker’s Journ. Bot. i. (1849) p. 296. 
Near Dikwella, 9th Jan. 1898, no. 44. 
A small-fruited form, the oospores being hardly 300 x long. 
This species was apparently first collected in Ceylon by Wichura in i862, 
see Braun & Nordst. * Fragmente,’ p. 135. 
C. ZEYLANIOCA, Willd. in Mém. Acad. Roy. Se. Berl. 1803 (1805) p. 86. 
Negumbo, at sea-level, 13th Nov. 1895 (sterile), no. 29 ; shallow tank, 
Tangalla, 8th Jan. 1898, no. 45 ; Dikwella, 9th Jan. 1898, nos. 46 & 47; 
Amblangoda, 12th Jan. 1898, no. 48. 
In some of the Dikwella specimens, fruits are produced at the lowest 
branchlet-nodes, in others and in those from Tangalla and Amblangoda the 
