374 MR, JAMES GROVES: 
ii. Diplostichæ. 
* Aulacanthe. 
9. CHARA VULGARIS L. C. fœtida Braun, 
This polymorphic species is very widely distributed in India proper. We 
have seen specimens from districts 1, 2, 3, 5, 6, and 7, also from 9, Manipur. 
A form collected by Mrs. Tristram from (2) near Campbellpur has unusually 
large antheridia (diam. > 525 p). 
A world-wide species. 
10. C. GYMNOPHYLLA Braun. 
3. Inn Gaung, c. 3800", nos. 1-2; middle of Inle Valley, c. 3000’, no. 4; 
N. of Fort Stedman, Inle Valley, c. 3000", no. 5 ; Taunggyi, 4700", 
no. 7; Loi-An near Kalaw, no. 8; all in the Southern Shan 
States, 1922, N. Annandale. 
Closely allied to and much resembling C. vulgaris and perhaps best 
regarded as a subspecies thereof, distinguished by its + ecorticate branchlets, 
gametangia being produced at nodes not giving rise to a cortex. 
C. gymnophylla is characteristically a Mediterranean species occurring all 
along the south of Europe, in Syria, and in several parts of N. and S. Africa, 
also in the Caucasus, and it is known from one locality in China. 
** Tylacanthæ. 
11. C. CONTRARIA Kütz. 
Widely distributed in India proper, occurring in many localities in 
districts 1, 2,3, 6, and 7, also in 9, Northern Shan States. 
C. contraria is a wide-spread species occurring almost throughout Europe, 
in some other parts of Asia, in North and South Africa, in North and South 
America, and in Australasia. 
iii. Triplostichæ. 
* Phlæopodes. 
12. C. INFIRMA Braun. 
This rather doubtful species was described from specimens collected by 
Griffith in Afghanistan (without further indication of locality), numbered 4, 
112, & 128. The principal characters relied upon to separate it from the 
other dicecious species of the section were the strongly-developed stipulodes 
coupled with rudimentary spine-cells. Specimens from the two localities 
mentioned below, however, seem to belong to this species, although the 
stipulodes are by no means always well-developed, and the bracts and 
bracteoles are smaller than in Griffith’s plant. The cortex is similar, the 
