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atoll research bulletin no. 392 the flora of - Smithsonian Institution ...

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about 2.5 cm long, each pair with clusters <strong>of</strong> 8 to 10 narrow bright-yellow tubular<br />

flowers with corollas about 5 cm long and 5-lobed calyxes; fruiting capsule, narrow,<br />

cylindrical, 6- to 8-seeded. Planted ornamental shrub 6(16l).<br />

Thunbergia alata Bojer ex Sims "black-eyed Susan"<br />

Recent introduction. Trop. Africa. Rare. Herbaceous or slightly woody pubescent<br />

climbing or trailing vine with angular stems, up to 2 m or longer; leaves, 4 to 8 cm long,<br />

mid-green, opposite, deltoid ovate or ovate-lanceolate, pointed, palmately-veined,<br />

irregularly too<strong>the</strong>d; winged petioles, about as long as <strong>the</strong> blade; flowers solitary on<br />

axillary stems (pedicels), up to 5 cm long, 2 large bracts, about 2 cm long, calyx ring-<br />

like, corolla, yellow-orange to cream, 3 to 4 cm across, with a purple tube, 2 cm long;<br />

fruiting capsule depressed-globose, beaked, about 1 cm long; seeds warty and ribbed.<br />

Planted ornamental vine. 5.<br />

Thunbergia erecta (Benth .) T. Anders.<br />

syn . Meyenia. erecta. Ben th .<br />

"bush thunbergia"<br />

Recent introduction. Trop. W. Africa. Occasional. Erect, somewhat sprawling<br />

shrub, up to 2 m tall, with 4-angled stems; leaves, 3 to 8 cm or longer, opposite, oval-<br />

ovate, palmately 5- to 7-nerved; petioles, slender, up to 4 cm or longer, winged nearly to<br />

base; flowers solitary on axillary stems (pedicels), 1 to 2 cm long, with 2 large bracts, up<br />

to 2 cm long, calyx, 3 to 6 mm long, corolla curved, funnel-form, 3.5 to 6 cm in<br />

diameter and tube 2 or 3 cm long, irregularly 5-lobed, deep blue-violet or white with a<br />

yellow throat; fruiting capsule 2 to 2.5 cm long. Planted ornamental erect shrub.<br />

3(58700), 5(110), 6, 7.<br />

Thunbergia grandi<strong>flora</strong> (Roxb. ex Rottler) Roxb."Bengal clock vine", "Bengal trumpet",<br />

"large-flowered thunbergia"<br />

syn. Flemingia grandzj7ora Roxb. ex Rottler<br />

Recent introduction. India. Rare. Climbing vine; leaves, 7.5 to 20 cm long, dark<br />

green, nearly as broad, cordate, palmately lobed, 5 to 7- nerved, pubescent; petioles, 4 to<br />

12 cm long; flowers in pendent racemes, calyx pubescent and reduced to a narrow ring,<br />

corolla violet or whitish, 6 to 8 cm in diameter, <strong>the</strong> tube pale yellow, 3 to 3.5 cm long;<br />

capsule up to 1.5 cm, <strong>the</strong> beak to 3 cm long. Planted ornamental. 6(187).

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