OF THE GENUS SYMBLEPHARIS. 497 
rangular cells, with narrow walls not constricted ; in S. Rein- 
wardti the cells are narrower, with thicker walls, which are more 
or less strongly constricted at intervals. A difference is very 
noticeable, too, where the vaginant base passes into the subula. 
In 8. helicophylla the elongated rectangular cells pass quickly 
into the more or less quadrate incrassated cells of the upper part ; 
in S. Reinwardti the transition is more gradual, and the space is 
occupied by irregularly shaped cells, with the cell-walls strongly 
constricted at intervals (cf. figs. 12, 13, & 35, 36). The areo- 
lation of the upper part of the leaf of S. Reinwardti shows con- 
siderable variation: the cells are sometimes regularly quadrate, 
usually elongate-quadrate, but sometimes more or less wavy in 
outline, and the cell-walls constricted at intervals like those of 
the lower cells. 
The Java and Borneo specimens have a rather different facies 
from the Indian ones, due to the larger, more crowded, and 
softer leaves of a warm yellowish colour; the Indian ones have 
shorter, more rigid leaves, duller and paler in colour. 
It is interesting to find the Moulmein specimens just inter- 
mediate in these characters. 
Excluded Species. 
S. 2 circinata, Besch., in Ann. Sci. Nat. sér. VI. ix. p. 308 
(1878 [1879)). 
Disrrisurion.—Africa: La Réunion; plaine des Cafres 
(G. de l'Isle ; Lépervanche, 1876) ; Grande Comore (Boivin). 
There are specimens of tbis (ex herb. Bescherelle) from both 
localities in the Kew Herbarium, and I find that there are two 
distinet mosses represented. 
Bescherelle’s description applies best to the Grande Comore 
plant; the La Réunion one has shorter, much broader, somewhat 
lingulate leaves, rather suddenly narrowed to a triangular point, 
nerve only slightly excurrent, different base, &c. The following 
remarks refer to the Grande Comore plant. Bescherelle Coc- 
cit.) concludes his description with the observation, “ Espece 
inconnue en fructification, et qui parait très voisine du S. Chris- 
mari du Mexique." 
The specimens I have examined, however, bear no resemblance 
2p2 
