Psychotria 九節木屬
型態特徵
Shrubs, small trees or climbers. Leaves opposite. Flowers greenish-white, in terminal cymes or head-like, rarely axillary, bisexual or unisexual; corolla-tube short, cup-like, (4-)5(–6)-lobed, valvate in bud, the mouth of throat pilose; stamens as many as the lobes, 2-celled, longitudinally dehiscent, exserted or included, filaments glabrous or pilose; styles cylindrical, stigma 2-lobed, papillose; ovary 2-celled, ovule 1 in each cell; bisexual flowers dimorphic, heterostyles; unisexual flowers dioecious; male flowers: with rudimentary pistil, included, stamens long-exserted; female flowers: with rudimentary empty stamens in mouth of corolla, styles exserted. Fruit a drupe, red, black or white at maturity. Seeds 2 ridged.
About 1400 species all in tropical or subtropical areas; 4 species in Taiwan.
種列表
- Psychotria arbuscula
- Psychotria carnea
- Psychotria cephalophora 蘭嶼九節木
- Psychotria ladronica
- Psychotria lasianthoides
- Psychotria leptothyrsa var. longicarpa
- Psychotria leptothyrsa
- Psychotria leptothyrsoides
- Psychotria lucida
- Psychotria manillensis 琉球九節木
- Psychotria mariana
- Psychotria merrillii
- Psychotria mycetoides
- Psychotria palauensis
- Psychotria rhombocarpa
- Psychotria rhombocarpoides
- Psychotria rotensis
- Psychotria rubra 九節木
- Psychotria serpens 拎壁龍
- Psychotria talasensis
- Psychotria tubiflora
