Familia Stemonaceae

STEMONACEAE

Morphological description

Herbs, often climbing, tuberous.

Leaves

Leaves simple, entire, with curved veins and scalariform secondaries, exstipulate.

Inflorescence

Inflorescence.

Flowers

Flowers 4-merous, tepals in 2 rows of 2, stamens 4, epitepalous. Usually ovary superior.

Fruit

Fruit a capsule.

Seed

Seed arillate.

Different from: Dioscoreaceae: flowers 3-merous, ovary inferior. 

Distribution: A family of 3 genera, two in Indo-Malesia, one in East Asia and North America. In Malesia: Stemona and Stichoneuron.

Notes: Pentastemona, originally ascribed to Stemonaceae, has been placed in a distinct family.

Literature: B.E.E. Duyfjes, Fl. Males. I, 11 (1993) 399- 409.

Spot characters (Van Balgooy): Stemonaceae 104 - Stemona 5, 64, 68, 85 - Stichoneuron 5.

Illustrations: Fig. 169. Stemona tuberosa Lour. var. ternatensis (J. J. Sm.) Duyfjes (Stemonaceae). Leaf; enlarged inflorescence, the peduncle partly fused with the petiole. Reproduced from Flora Malesiana I, 11 (1993) 406, fig. 1a, b.

Image in PhytoImages for Stemonaceae

 

 

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