All Floras      Advanced Search
FOC Vol. 5 Page 28 Login | eFloras Home | Help
FOC | Family List | FOC Vol. 5 | Moraceae

5. Streblus Loureiro, Fl. Cochinch. 2: 754. 1790.

鹊肾树属 que shen shu shu

Dimerocarpus Gagnepain; Diplocos Bureau; Diplothorax Gagnepain; Epicarpurus Blume; Paratrophis Blume; Pseudostreblus Bureau; Pseudotrophis Warburg; Taxotrophis Blume; Teonongia Stapf.

Trees or shrubs, occasionally scandent shrubs, with latex, sometimes spiny; monoecious or dioecious. Spines when present axillary. Stipules free or connate, lateral to ± amplexicaul, caducous. Leaves alternate, distichous; petiole short; leaf blade with or without cystoliths on one or both surfaces, margin entire or toothed and not glandular; secondary veins pinnate. Male inflorescences axillary, sometimes bisexual with a single central female flower, racemose, spicate, or ± capitate, pedunculate. Female inflorescences often 1-flowered. Male flowers: calyx lobes (3 or)4(or 5), free or basally adnate with pistillode, imbricate or valvate; stamens inflexed in bud; anthers small, reniform, extrorse. Female flowers: calyx lobes 4, opposite, free or ± connate, imbricate; ovary superior, ovoid to oblique, basally thick and fleshy, enclosed by persistent calyx lobes or not; style 2-branched. Fruit free, not aggregated into a syncarp. Drupes globose, dehiscent or indehiscent, sometimes loosely covered by slightly enlarged persistent calyx, often basally fleshy on one side. Seed large, globose, enveloped by membranous endocarp, endosperm present or absent; cotyledons unequal.

Twenty-two species: tropical and subtropical Asia; seven species in China.

1 Male inflorescences capitate to shortly racemose; female inflorescences 1-flowered; bisexual inflorescences sometimes present.   (2)
+ Male inflorescences spicate or scorpioid cymose; female inflorescences usually 2-8-flowered (1-flowered in S. indicus); bisexual inflorescences usually absent (present in S. indicus).   (4)
2 (1) Plants with spines; branchlets with dark-yellow marginal hairs on one side; drupes basally fleshy; plants dioecious.   3 S. taxoides
+ Plants spineless; branchlets uniformly hairy; drupes basally not fleshy; plants often monoecious.   (3)
3 (2) Leaf blade papery; pistillode cubic; drupe dehiscent, not enclosed by persistent calyx lobes.   2 S. tonkinensis
+ Leaf blade leathery; pistillode conic to cylindric; drupes indehiscent, enclosed by persistent calyx lobes.   1 S. asper
4 (1) Male inflorescences scorpioid; male flowers 5-merous; female inflorescences 1-flowered; drupes indehiscent.   4 S. indicus
+ Male inflorescences racemose or spicate; male flowers 4-merous; female inflorescences 2-8-flowered; drupes ± dehiscent.   (5)
5 (4) Leaf blade ovate-oblong, narrowly elliptic, or lanceolate, apex shortly attenuate and tipped by 1 long tooth flanked by 2 short triangular teeth; cotyledons ± equal.   5 S. zeylanicus
+ Leaf blade elliptic, obovate-elliptic, rhombic, or oblong-obovate, apex acute, blunt, or retuse, with two spiny teeth or caudate; cotyledons unequal.   (6)
6 (5) Branchlets spineless; leaf blade elliptic to obovate-elliptic, 8-16 × 3-6 cm, membranous to papery, margin entire or ± undulate, apex caudate.   6 S. macrophyllus
+ Branchlets with 1-1.5(-4.5) cm spines; leaf blade rhombic to oblong-obovate, 1-4.5(-9) × 0.6-2.5(-5) cm, leathery, margin loosely revolute with 5 or fewer spiny teeth, apex acute, blunt, or retuse, with two spiny teeth.   7 S. ilicifolius

Lower Taxa


Related Objects  
  • PDF File
  • PDF

    Flora of China @
    Browse by
    Advanced Search

    Flora of China Home




     |  eFlora Home |  People Search  |  Help  |  ActKey  |  Hu Cards  |  Glossary  |