OF INDIA AND CEYLON. 
2:^1 
Warming’s Polypleuriim Schmidtianum from Siam (1. c., 
VI., p. 1) seems to be related to Podostemon Barberi and 
to form a connecting link to Dicræa, but until we know 
the fruit its exact position cannot be determined. 
Species Exclusce, 
P. dichotomus, Gardn. (incl. Wightii, 
rigidus, longifolius) = Dicræa dichotoma. 
stylosus, Benth. (incl. algæformis, 
Benth.) 
elongatus, Gardn. 
Wallichii, R. Br. (incl, pter( 
Benth.) 
minor, Benth. 
Hookerianus, Benth. 
Johnsonii, Wedd. 
= D. stylosa. 
= D. elongata. 
phyllus, 
= D. Wallichii. 
== D. minor. 
= Griffithella Hook- 
eriana. 
= Hydrobry urn John- 
sonii, 
olivaceus, Gardn. (inch griseus, 
Gardn.) = H. olivaceus. 
Gardneri, Harv. MS. ex Thw. = H. olivaceus. 
acuminatus, Wedd. = H. lichenoides, 
microcarpus, Wedd. = H. lichenoides, 
selaginoides, Benth. = Willisia selagi- 
noides. 
GRIFFITHELLA, Warming, Famil. Podost., VI., Kgl. 
Dansk. Vid. Selsk. Skr., 6e Raek., XI., p. 12 ; Mniopsidis sp., 
Tub, Wight, 11. cc. ; Podostemonis sp., Wedd., Benth., 
Hooker, 11. cc. 
Fruit anisolobous, smooth, dehiscent, with ooseeds. Thallus 
algiform, of great polymorphism; secondary shoots marginal 
or on central parts, small with included axis in vegetative 
condition, ultimately slightly exserted, with distichous 
leaves. Spathe erect or ascending, splitting at tip into 
irregular teeth. 
