Hill . — The Floral Morphology of the Genus Sebaea. 48 1 
Figs. 24, 35) and S. Thomasii , and in the Indian species 5 . khasiana , Clarke 
(PI. XXXV, Figs. 9-1 1), the base of the stigma proper is well above the level 
of the tops of the anthers. In the latter species, however, the stigma and 
anthers are at the same level, so that self-pollination can easily be effected, 
and in the Brevistylae the short stigma scarcely reaches to the level of the 
base of the anthers. 
Another point which should be noticed in considering the floral 
morphology of the genus is that almost all the species appear to be 
markedly protandrous, the anthers opening when the flowers are still in bud. 
5 . ambigua , as grown from seed at Kew, appears, however, to be an excep- 
tion, as the anthers, though mature before the stigma, did not open until 
the flowers had expanded (PL XXXV, Fig. 14). 
The flowers throughout the genus are orange-yellow, or white in 
exceptional cases. The corolla lobes are usually about equal in length 
to the tube, 1 and they are spread out flat during a bright day. The corolla 
tube is usually thin-walled and elastic, and is often slightly constricted at 
the throat. When the ovary begins to swell it is usually closely embraced 
by the corolla tube. 
The anthers are capped in nearly all the species by a small yellow 
gland, and in some species there are two glands at their base in addition. 
In a few species the apical gland is large and nearly black 
(S. Thodeana , &c ). 
The anthers, when the flower is open, are conspicuous, and in many 
species stand clear of the outspread lobes with the style capped by the 
stigma rising above them. But where the anther filaments are inserted at 
some distance below the sinuses, or where the corolla lobes do not open so 
widely, the stamens are more or less included in the corolla tube, and in such 
a species as .S. Thodeana (PI. XXXV, Fig. 35) only the large apical glands 
of the anther are visible, while in 5 . Thomasii they are included in the tube 
after the manner of Exochaenium . The individual flowers last for two or 
three days, but they close regularly at dusk, and also when the sky is over- 
cast. With the final withering of the flower there is considerable torsion 
of the corolla, which may have an important function in self-pollination, as 
will presently appear. 
The peculiar organ or organs of the flowers of Sebaea may now be 
described. It has already been mentioned that, with certain exceptions, 
the stigma stands well above the tops of the anthers, so that self-pollination 
is impossible. There are, however, the two swellings on the style below 
the level of the base of the anthers, and therefore within the corolla tube, 
which have been found to occur in the large majority of the species of 
Sebaea. Though these swellings have been mentioned by others, their 
1 Huxley (Journ. Linn. Soc., xxiv, p. 109) places the genus in his group Lissanthe and the 
corolla is described as infundibulate. 
