PERKINS— THE LEGUMINOSAE OF PORTO RICO. 185 



According to Cools and Collins the Porto Rican peanuts are very -mall in size and 

 doI many are grew ii. 

 Local aame, main. 



42. ZORNIA Gmel. 



Zornia Gmei . Syst. 2 2 : L076, L096. L791. 

 Zonana Stei d. Norn. ed. 2. 1: L01. L840. 



Calyx lulmlifonn-campanulate, membranous, the two upper teeth rather long, Bub- 

 connate, the two lateral ones much shorter, the lowest Lanceolate-oblong, almosl ae 

 long as the upper ones; petals unguiculate; standard suborbicular; winge obliquely 

 ul. ovale or oblong; keel incurved, subrostrate; stamens all connate in a tube; anthers 

 alternately longer and shorter, attached near the base and versatile; ovary 3essile, 

 multiovulate; style filiform; stigma small, terminal; pod compressed, the upper 

 suture nearly straight, i he lower deeply sinuate, the articulations indehiscent, smooth, 

 or echinate; seeds orbicular or subreniform. Berbe or suffrutescent; leaves equally 

 pinnate; leaflets - or I. often punctate; stipules usually foliaceous; flowers solitary, 

 sessile or shortly stipitate, in lax terminal or axillary spikes hidden each by a pair of 

 persistenl bracts; bracteoles wanting. 



1. Zornia diphylla (L.) Pers. 

 (Urban, 289.) 



Herb; stem 30 cm. or more long, slender, herbaceous, glabrous, diffusely branched 

 from the base; stipules lanceolate: petioles I to 2 cm. long, the leaflets in a Bingle pair 

 at the apex, lanceolate 12.5 to 3.5 cm. long, 6 to 9 mm. wide, the edge slightly ciliate, the 

 surface glabrous; flowers in lax axillary stalked racemes 5 to 7.5 cm. long, 6 to 8 in num- 

 ber, hidden each by a pair of persistent bracts, which are ovate, rigid, 6 to. 9 mm. long, 

 slightly bristly-ciliate; calyx 3 to 4.5 mm. long, scarious; corolla 6 to 9 nun. long, 

 purplish; pod sometimes exceeding the bracts, articulations 2 to 4, the bristles 1 to 2 

 mm. long. 



Near Bayamon in sandy meadows; near Salinas de Cabo Rojo on the edge of the 

 woods; near Mayaguez, on slopes of Mount Mesa; near A fiasco; nearAguada, on plains 

 at Rosario; near Manati, in sandy soil at Campo Alegre around Tortuguero Lake. 

 Cuba. Jamaica, Haiti, St. Thomas, St. Croix (De Candolle), Guadeloupe, Degrade 

 (Grisebach), Dominica (do.), Martinique, St. Lucia. Barbados, Trinidad (Grisebach). 

 This plant is found everywhere in the tropics and subtropics. 



Zornia diphylla is stacked by the Foulahs of western Africa for horse provender. It 

 is sometimes used as a remedy against fever. 



Local name, zarzabacoa de dos hojas. 



43. DESMODIUM Desv.' 



\feibomia Adans. Fain. 2: 509, : >7-V L763. 

 Desmodium Desv. Journ. Bot. 1: L22. pi. 5. Jig. !■'>. L813. 

 PlmrolointsJ. St. Bil. Nouv. Bull. Spc. Philom. 3: 192. 1812. 



Calyx with campanulate or turbinate short lube, the upper two teeth more or less 

 united, the other three acute or subulate-acuminate; petals sessile or unguiculate; 

 standard oblong, obovate, or suborbicular, usually nan-owed toward the base, Beldom 

 obtuse or subcordate above the claw; wings obliquely oblong, adherent to the ke< I 

 wi i hoi ii appendage or by means of a membrane or a tubercle; keel -i raight . sometimes 

 incurved, obtuse, rarely rostrate; upper stamens free at the base, toward the middle 



"Cook and Collins, pp. L88, L89, as Meibomia. 



