14G CONTRIBUTIONS FliOM TITE NATIONAL IIEKBARTUM 



6. LEUCAENA Benth. 



Leucacna Bextii. Hook. Journ. Bot. 4: 41(5. 1842, 



Flowers 5-uierous, sossilo, usually hcriiiaphrodite; calyx tubular-campaniilato, 

 dentate; corolla free; .stamens 10, exserted; ovary stii)itute, midtiovulate; style fili- 

 form; legume stipitate, broadly linear, flaty coriaceous, 2-valved, the valves contiuu- 

 ous; seeds flat, ovate, transverflo. — Trees or shrubs, unarmed; leaves bipinnate, the 

 racliis with or without glands; the hadets small, multijugate, or large and panciju- 

 gate; stipules minute; flcnver-heads wliitCj axillary, fascich^d, or racemose at the 

 extremities. 



1. Leucaena g^lauca (I..) Benth. 



(Urban, 266.) 



Tree 10 to 20 meters high, rarely a sluiib, unarmed; pinnae 4 to 8-jugate; leaflets 

 10 to 20-jugato, oblong-linear, pointed, oblique at the base, 11 to 10 mm. long, 4 mm< 

 wide; flowers minnle, white; legume glabrous, 10 to 15 cm. long; seeds compressed, 

 transverse to the va]v<*fi. 



Near Bayamon, in mountain forests and thickets; near Comerio, in thickets; near 

 Coamo, in the valley of Quebrada, Morena brook; near Guaniea, in the forest of 

 Mount El Maniel; near Mayagn(v.. — Bernuula, Bahama, Cuba, Jamaica, Caymai 

 (Hitchcock), Haiti, St. Thomas, St. Oroix, St. John (Eggers), St* Martin (Sto(dvholm 

 Herbarium), St. Kitts, Antigua (Grisebach), Guadeloupe, Dominica, Martinique, 

 St, Vincent, Bequia (Kew lUdl. no. 81, p. 250), Mustique (do.), Barbadtts, Grenada, 



1 



Tobago, Trinidad, rura<;'ao. In thi^ warmer regions of botli hemispheres, but proba- 

 bly indigenous only in tropical America. 



The firm wood of Leucaena glauca is used for making tools, and the young fruit 

 and tlie ripe seeds are eaten raw with rice. By some authors given as a tree (Urban), 

 by others as a shrub (Staid, cited l>y Cook and Collins, p. 175). 



Local names, acacia pdlida (Urban); haUondiUa (Cook and Collins). 



7. SCHRANKIA Willd. 



Sdtrankia Willd . Sp. PI. 4: 1041. ISOG, not Medic. 1792. 

 LeptoyloUis DC. Mem. Legum. 451. 1825. 

 Schranckia Benth. Hook. Journ. Bot. 4: 413. 1842. 

 Morongia Buitton, Mem. Torr. Club 5: 191. May, 1894, 



Flowers 5 or 4-merous, pedicellate, hermaphrodite or polygamous; calyx miimte; 

 corolla fnnn(d-form, the segments connate to (he middle; stamens twice as many as 

 the petals, free or cohering at the base, exserted; ovary subsessile, multiovulate; 

 style liliform; legume linear, subquadranguhir, aculeate throughout with spreading 

 prickles, the valves separating from the persistent sutural replum; seeds oi)long, 

 (juadrangnlar. — Herbs or undershrubs, armed with short recurved prickh^s; leaves 

 bipinnate; flower-heads globose, white or purple, axillary, solitary or fascicled, the 

 stamens in the male flowers often flatly compressed. 



1. Schrankia portoricensis Urb.^ 



/- 



(Urban, 2G7.) 



Shrub, clijnbing; branches glabrous or at leaf insertions slightly hairy; leaves 7 to 

 12 cm. long with petioles 3 to 4 cm. long; pinnae 4 to 7-jugate; leaflets 15 to 20-jugate, 

 linear, obtupo or somewhat acute, 3 to 6 mm. long, the veins inconspicuous, gla- 

 brous; flower heads axillary, solitary, 6 to 8 mm. in diameter, light yellow; calyx 



« Cook and Collins, p. 194, as Moromjia distachya. 



