306 Stapf — On the Sonerileae of Asia. 
Philippines were described by Naudin as S'. brachyandra . I 
have not seen the Philippine plant itself, but the figure given 
by Naudin (Ann. sc. nat. 3 ser. XV. t. 18. f. 2), leaves no doubt 
whatever about its identity with 5. tenera. 
VIII. Group of S. squarrosa. Khasia Mountains. 
It comprises two very aberrant and very well-defined species. 
1. S. squarrosa , Wall. Khasia Mountains. It has a short, 
branched stem, which evidently hides in moss. The stem 
is covered with the scars of the fallen leaves in the lower 
two-thirds, and with a dense foliage in the upper third. At 
the base of the lanceolate leaves, brown pointed bristles 
rise, one on each side, like stipules. Otherwise the plant is 
quite glabrous. The flowers are arranged in axillary (some- 
times apparently terminal) cymes, or these are reduced to a 
single flower. Calyx, petals, and anthers are similar to those 
of X. linearis , but the capsule is more like that of X. zeylanica. 
The pedicels, however, are in the mature state thicker and 
very distinctly articulate at the base. 
2. X. arguta , R. Br. Khasia Mountains. The leaves are 
very similar to those of X. squarrosa , but more membra- 
naceous. They are arranged and accompanied by bristles at 
their base, as in the former species. The stem is thinner and 
more fragile, and hides also in moss. The inflorescence is 
always reduced to a single flower. The peduncle, however, 
bears still 1-2 of those minute bracts which support the 
flowers in the cymes of X. squarrosa . The calyx is narrower, 
as in X. squarrosa , but besides, there is hardly any difference 
in the flowers of the two species. But the capsule differs 
more. It is but faintly ribbed, much elongated, and has a 
thinner pericarp. 
IX. Group of S. scapigera. South-west Ceylon. Western 
Ghats, from the South to Bombay. From Malacca to the 
Khasia Mountains and to Sikkim. 
This group consists chiefly of scapigerous forms, which 
diverge remarkably from those mentioned hitherto. But there 
are some species, west and east of the Bay of Bengal, in which 
