OF CEYLON AND INDIA. 
361 
incorrectly, as explained in my first paper. I obtained 
material in the Anamalais, where it grew in a rapid stream, 
sharing its habitat only with Hydrobryum lichenoides. It 
agrees in all essential points with the form last described, 
but has shorter stigmas on the whole, and the stamens do 
not greatly exceed the ovary as in that form. In some of 
Mr. Barber’s material, parts of the thallus are very broad (to 
2 cm.), and there are a considerable number of secondary 
shoots on the upper surface as well as at the margins. This 
simply implies, of course, a greater proportionate growth of 
the marginal parts, as compared with the central part and 
vascular bundles. 
D. stylosa kanarensis, Willis. 
The material which I have examined was collected by 
Mr. Barber in rapids in S. Kanara, where its habitat 
was shared with Griffithella Hookeriana and Lawia 
zeylanica. 
The habit of the plant is practically the same as that of 
the form fucoides, and the plants are of about the same 
size. Two chief points of difference must be noted. As 
in D. Wallichii, the floriferous secondary shoots are not all 
together, but are divided from one another by non-floriferous 
(PI. XXIV., fig. 3). The vascular bundles leading to the 
floriferous shoots become surrounded by the usual dark 
brown woody layer, while the others remain thin and indis- 
tinct. Presumably the thin parts of the thalli ultimately 
shrivel and perhaps drop off, but I have no material collected 
at a late enough stage to be sure of this. The bracts are also 
peculiar ; when young they are long and rather incurved, and 
they develop the cowl-like sheathing bases in the usual way. 
The tips, however, do not break off or shrivel close to the 
sheath, as in other Dicræas, but some distance above, so that 
a more or less persistent acuminate tip is left, even after 
drying. The fruit commonly stands on a very long pedicel, 
but sometimes on a much shorter one. 
