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Acanthaceae

爵床科

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特徵描述

作者

HSIEH, Chang-Fu and HUANG, Tseng-Chieng

型態特徵

Perennial herbs or shrubs. Leaves opposite and decussate, estipulate, simple, mostly entire or nearly so; cystoliths common on vegetative parts. Flowers axillary or terminal, solitary or in 2-many-flowered inflorescences, bisexual, frequently in axils of bracts; each flower often with 2 or occasionally more bracteoles; calyx lobes 4 or 5; corolla sympetalous, more or less zygomorphic, hypogynous, segments contorted to imbricate in bud; stamens 4, didynamous, or 2, inserted on corolla tube; staminodes sometimes present; filaments free or basally connate or connected by a membrane; anthers 1- or 2-celled, in latter inserted at same or different levels, basally spurred or not, dehiscing lengthwise; disc present; ovary superior, sessile on disc, 2-locular; placentation axile; ovules 2 or more in each locule, anatropous, in 2 rows; style 1, entire or shortly and often unequally bifid. Capsule usually elastically loculicidally 2-valved, 1-many-seeded; seeds usually compressed and partly surrounded by the hardened funicle (retinaculum); endosperm usually absent.

A family of about 346 genera and over 4,300 species, mostly in the warmer parts of the world; 15 genera, about 32 species with three varieties in Taiwan.

參考文獻

Strobilanthes 馬藍屬

作者

HSIEH, Chang-Fu and HUANG, Tseng-Chieng

型態特徵

Herbs, undershrubs or shrubs. Leaves sometimes anisophyllous, petiolate or subsessile. Flowers solitary, or usually in axillary or terminal spikes or cymules; bracts persistent or none; bracteoles 2, linear or linear-lanceolate; calyx 5-partite, segments linear, equal or unequal; corolla bluish violet or white, tubular, ventricose, limb 5-lobed, lobes subequal, contorted in bud; stamens 4, didynamous, basally connected by a membrane; anthers 2-celled, cells linear-oblong; ovary cells 2-ovulate; styles filiform, 2-lobed, anterior lobe long, posterior lobe rudimentary. Capsule oblong; retinacula well developed; seeds 4, obovate-elliptic, compressed, densely hairy or glabrous.

參考文獻

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學名 中名 標本數