364 WILLIS : MORPHOLOGY OF THE PODOSTEMACBÆ 
of Hydrobryum, &c. The flower itself, with its symmetrical 
ovary, is less dorsi ventral than that of Podostemon, and 
conies nearer to the floral types of the less highly modified 
groups of Podostemaceæ. 
GRIFFITHELLA. 
[Warming ; Willis, Rev. Podost. Ind., Ann. Perad., I., p. 231.] 
Under this genus I include the curious species first found 
by Law, described as a Mniopsis by Tulasne on account of its 
smooth fruit, and placed in Podostemon by Weddell, Ben- 
tham, and others. On the whole, perhaps, as explained in 
the preceding paper, it comes nearest to Mniopsis, but on 
account of its peculiar thallus morphology, its reduced 
secondary shoots, and the different stigmas, I am inclined, 
though with some diffidence, to regard it for the present as 
generically distinct. Warming (42, VI., p. 13) has described 
a second species, G-. Willisiana, from herbarium material, but 
I am hardly inclined to regard this as a separate species 
until further material has been examined from Kanara, and 
I have therefore included it as a variety in G. Hookeriana. 
The genus also seems, as Warming points out, to have 
relationships to the Javanese Cladopus, 
In general we may say that the genus, as at present known, 
has the morphology of Dicræa in the vegetative parts, and 
of Mniopsis in the floral. 
GriffStheBla Hookeriana, Warming. 
(Plates XXIV.-XXVI.) 
For material of this extremely interesting plant I am 
indebted to my friend Mr. Barber, who collected the 
remarkable series of forms figured in Plates XXV. and 
XXVI. (left), and to Mr. R. K. Bhide, who collected some 
(Plate XXVI., right) at Atgaon, west of Poona. I sought for 
it in vain on my own visit to the Bombay Ghats. 
