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32. Jasminanthes Blume, Ann. Mus. Bot. Lugduno-Batavi. 1: 148. 1850.

黑鳗藤属 hei man teng shu

Stephanotis Du Petit-Thouars sect. Jasminanthes (Blume ) Hemsley; Huthamnus Tsiang.

Lianas. Cymes extra-axillary, umbel-like, simple or dichotomous. Calyx deeply 5-parted, usually eglandular, segments erect and connate at base. Corolla salverform or urceolate; tube elongated, base broad, throat constricted or slightly dilated, interior with 5 pairs of longitudinal lines of hairs; lobes 5, twisted to right, usually longer than tube, acuminate in bud. Corona lobes usually conspicuous, adnate to back of stamens, erect, apex free, dorsally compressed, with board-shaped processes on back, minute or absent. Filaments connate into a short tube; anther appendages erect or inflexed on stigma head; pollinia 2 per pollinarium, erect. Stigma head conical or capitate. Follicles lanceolate or oblong-lanceolate, apex acuminate. Seeds comose.

Jasminanthes was formerly included in Stephanotis, but the latter is endemic to Madagascar.

About five species: China, Thailand; four species in China.

1 Leaf blade broadly cuneate at base, glabrous   1 Jasminanthes saxatilis
+ Leaf blade cordate to truncate at base, tomentose or puberulent when young, glabrescent.   (2)
2 (1) Corolla lobes shorter than tube; corona absent; leaves tomentose   2 Jasminanthes pilosa
+ Corolla lobes longer than or equalling tube; corona present; leaves puberulent to glabrescent.   (3)
3 (2) Corolla tube 10-20 mm, lobes 17-30 mm   3 Jasminanthes mucronata
+ Corolla tube 7-8 mm, lobes ca. 7 mm   4 Jasminanthes chunii

Lower Taxa


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