Begonia socotrana

Gardeners' Chronicle Jan 1, 1881, p. 8.
BEGONIA SOCOTRANA, Hook. fil., sp. n.*
A very pretty species, of which tubers were brought by Dr. I. B. Balfour
from the dry and hot island of Socotra in the Indian Ocean, off the coast
of Arabia, one of the last places in the world in which a Begonia could
have been expected to occur. From the geographical position of that island
the affinity of this discovery may be conjectured to be either Asiatic
or African, and upon the whole, though referable to none of the sixty
sections of the genus, founded by Klotzsch and A. de Candolle, it must,
I think, be placed in the African one of Augustia, from the characters
of which it differs chiefly in the male perianth having four segments,
in the shorter filaments, rounded top of the anther, in the six lobes
of the female perianth instead of five, and the untwisted arms of the
style-characters which, except the last, occur in the Natal B.
geranioides,
Hook. f. (Bot. Mag., t. 5583), to which B.
socotrana is unquestionably
closely allied. This is only one of the many most interesting plants
brought by Dr. I. B. Balfour from an island which he alone has had the
good fortune to explore, and the publication of the results of which
exploration are awaited with impatience by botanists no less than horticulturists.
A coloured plate of the Begonia will shortly be published in the Botanical
Magazine. The loyal gardens are indebted to Dr. I. B. Balfour for tubers
which he liberally presented to that institution in April, and which
flowered in December. J. D. Hooker.
*Begonia socotrana,
Hook. fil.—Sparsely hairy, erect leaves orbicular peltate crenate,
disk intruded, funnel-shaped, margins recurved; flowers monoecious, rose-pink,
males numerous, perianth-lobes 4, obovate; stamens in a globose cluster,
filaments short, free, anthers clavate, recurved, tip rounded, dehiscence
dorsal,—female
flower solitary; perianth segments 6 elliptic-obovate; styles short,
arms spreading and incurved not twisted; stigmas cordate, connected by
a papillose band ; ovary 3-angled, 3-celled, dorsal cell moderately winged,
placentas entire.
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