Ridley —Two new species of Thismia . 325 
bracts are figured as smooth and wanting the glandular hairs 
of Th. grandiflora^ and the broader dilate base of the perianth- 
lobes is much shorter in proportion to the filiform tails. The 
androecium and pistil of Th. Ophinrus are not described. 
Th. grandiflora is remarkable for the large urn-shaped 
perianth tapering to the ovary at the base. It is of a dull 
rose-pink, with numerous longitudinal striae. The corona, 
which is more distinctly elevated than in the preceding species, 
is brownish. The androecium resembles that of the Th. 
chrysops , except in having three processes on the edge of each 
connective, one of which is much longer than the two outer 
ones ; and there is also a distinct inner margin behind the 
front edge, which bears a number of low papilla-like processes. 
The form of the connectives of the anthers and the amount 
of connation will probably be found to be the best means 
of classifying the various species of the genus. The stigmatic 
lobes are rounded and blunt, and quite entire. 
Of the Asiatic species at present known, the two Indian 
species, Th. Brunoniano , Griff., from Tenasserim, and Th. 
Gardneriana , from Ceylon, are separated from those of the 
Malayan region by having caudate sepals and short ovate 
dissimilar petals ; while in the Malay species, Th. Aseroe , Becc, 
Th. fnrnida , Ridl., Th. chrysops , Ridl., Th. grandiflora , Ridl., 
Th. Ophinrus , Becc., the petals and sepals are quite similar. 
Th. Neptunis , Becc., a very remarkable species from Borneo, 
has also dissimilar petals and sepals. 
