OF INDIA AND CEYLON. 
227 
Willis ! A plant from Kannikatti, S. India, C. A. Bar- 
ber, S. Ind. Flora, 417, appears to be this form, but 
more flower material is required for certainty. 
Very easily recognized in the vegetative condition by its 
crisped Fucus-like thalli, but in fruit almost indistin- 
guishable from the next. 
D. stylosalaciniata ; synonymy as above, but Podostemon 
laciniatus, Willis MS. in herb. var. 
Thallus with the habit of that of D. elongata, but flattened, 
narrow, to 5 mm. wide, with creeping basal part giving 
off freely floating branched laciniate thalli to 50 cm, 
long. Floral buds, &c., as in preceding variety. Ceylon. 
Mahaweli-ganga at Hakinda, Thwaites ! Trimen ! Willis ! 
Guru-oya at confluence with Hulu-ganga, Willis ! 
Very easily recognized in the vegetative condition by the 
thalli, but when in fruit very similar to the preceding, 
owing to the falling away of the long laciniate ends. 
Occasionally mistaken for D. elongata, as, e.g., in 
material distributed by Trimen, but distinguished by the 
flat thalli and square buds. 
D. stylosa algceformis ; D. algæformis, Bedd., 1. c. (non 
Trimen) ; D. algæoides, Bedd. MS.; Podostemon algæ- 
formis, Benth. (non Trimen). 
Thallus algiform, much branched, to 25 cm. long and 1 
cm. broad, branches tapering, laciniate or loriform. 
Edges of thallus thin, deciduous, often zigzag. Stamens 
equalling or slightly exceeding ovary and stigmas. 
Stigmas long, less than or equalling ovary. Pedicel of 
fruit 10-20 mm. S. India. 
Anamalais, Beddome ! Willis, in the Sholai Aar, Monica 
estate, 3,500 feet ! C. A. Barber, S. Ind. Flora, 3,882 ! 
3,702 (?). Scarcely distinguishable from the following, 
except by the shorter stamens, a character of rather 
doubtful value. 
