討論:粉藤屬

山羊百科,林文智老師的植物、山岳、攝影紀錄

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3. CISSUS L. 粉藤屬

Deciduous or evergreen shrubs climbing by tendrils, rarely herbs with tuberous roots. Leaves alternate, more or less fleshy, simple or compound. Flowers perfect of polygamo-monoecious, 4-merous, in usually umbel-like cymes, opposite a leaf or terminal. Petals expanding; disc cupular, 4-lobed or of 4 distinct glands; ovary globose; styles filiform with a minute stigma. Fruit a 1-2-seeded berry.

KEY TO SPECIES

1. Leaves compound, pedately 5-foliolate, glabrous… 2. C. lanyuensis

1. Leaves simple.

2. Plants glabrous throughout.

3. Stems terete; leaves broadly ovate, 5.5-10 cm wide, somewhat glaucous beneath… 4. C. repens

3. Stems 4-angular, with broad wings at the angles; leaves long-ovate or cordate, 3-5 cm wide, glabrous but not glaucous beneath… 3. C. pteroclada

2. Plants clothed with a rust-colored pubescence; stems terete or slightly furrowed; leaves orbicular-cordate… 1. C. adnata

Botanical Survey of India
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