Dicrea.] Podostemonacez. 243 
mentous staminode on either side of the common stalk. 
Pollen didymous. Ovary symmetrical elliptical, 2-locular, 
with 2 equal or unequal subulate stigmas with small papille. 
Ovules numerous. Capsule isolobous, 8 or rarely 9-12 
ribbed, the ribs on both valves decurrent into the pedicel, 
septifragal, both valves persistent. Seeds numerous.—Sp. 7; 
S.E. Asia and Madagascar. 
Page 417.—For Podostemon elongatus Gardn. read: 
1. Dicrea elongata Tul. in Ann. Sc. Nat., sér., IX, p. 102 
(1849); Willis 1. c. pp. 219, 340 tt. 14-18-20 (1902). Podostemon elon- 
gatus Gardn. in Calc. Journ. Nat. Hist. VII, p. 188 (1846). 
Bambarabotuva-ganga. 
For P. algeformis Trim. read: 
2. D. stylosa Wight Ic. t. 1917 (1852); Willis 1. c. pp. 225, 354 
t. 22-24 (1902). Podostemon algeformis Trim. in Journ. Bot. XXIII, 
p- 173 (1885) non Benth. 
Willis remarks p. 226: ‘‘ This species as here defined, probably repre- 
sents an aggregate of species which may ultimately be divided into 
at least three, if not many more.”’ 
Var. fucoides Willis 1. c. p. 226. Podostemon fucoides Willis |. c. 
in syn. 
Thallus chocolate-coloured, Fucus-like, crisped or undu- 
lated, broad, attached at base by a foot, and usually else- 
where by haptera or hairs. Stamens as long as ovary and 
stigmas. Stigma shorter than ovary. Pedicel of fruit 
6-8 mm. 
Hakkinda; Guru-oya. 
Var. laciniata Willis 1. c. p. 227. Podostemon laciniatus Willis 
Le, in syn: 
Thallus with the habit of that of D. elongata, but flattened, 
narrow, up to 5 mm. wide, with creeping basal part giving 
off freely floating branched laciniate thalli up to 50 cm. 
long. Floral buds, etc., as in the preceding variety. 
Hakkinda ; Guru-oya. 
Also two other varieties in India. 
Page 418.— 
Podostemon subulatus Gardn. 
Willis 1. c. pp. 229, 328 tt. 14-16 (1902). 
Also in S. India (var. Sholaii Willis). 
4. HYDROBRYUM Endl. 
Primary axis erect, non-floriferous in most cases, larger 
than in Podostemon. Thallus of phylogenetic root nature, 
Part III. 
