l s ^ CONTRIBUTIONS li:«»M I'll! NATIONAL SEBBABIUM. 



• in. 1 ■ » » i i_r ; bracts ovate, cuspidate, equaling the Blender pedicels, 8.8 to 13 nun. long, 

 spreading ultimately from therachisat right angles; calyi •'• nun. deep, teeth linear. 

 reaching down nearly to tin' base; corolla purple or reddish, rarely \\ Inn'. iu ice as Long 

 as ilie calyx; pod L.2 \<> 2 cm. long, 2.2 nun. broad, joints '•'< t" 6, the lower Buture 

 w;i\ ed halfway do* n. 



BayamoD in tnoisl sandy soil al Catafio; Sierra de Luquillo halfway to the top 

 of Mount Jimenez in woods; Sierra <!<■ \'aL r ual><.. near Minas de Cobre at Rio Blanco; 



near Juncos on roadsides; near Hato Grande on Mounl i 

 between Aguas Buenas and Caguas along roads; between Caguas and Cayey along 

 roads; near Cayey at Quebrada Arriba; near Aibonito along roads; nearAdjunt 

 the declivities of Mount Andubo and on Mount Cedro; near Maricao; near Mayaguez, 

 on declivities -i Mount Mesa. Cuba Grisebach . Jamaica, il;iiii. St. Kitts (Grise- 

 bach), Antigua do.), Guadeloupe, Dominica, Martinique, St. Vincent, Grenada, 

 Tobago, Trinidad Grisebach). Tin- is a common American species, but in the old 

 World is only known in Africa. 

 Local name, larzabacoa galana. 



1. Desmodium axillare (Sw.) DC. 

 The Pin!') Rican material is included in the Following varieties and form: 

 la. Desmodium axillare obtusifoliola (Kuntze i Urb. 

 (Urban, 291. 



Eerbaceous, rarely suf&utescent, creeping, rooting, :'.<> to 45 cm. long, clothed with 

 \ ery Bhorl Bof1 inconspicuous hairs intermixed with hamate ones; leaflets 3, rhomboid, 

 ovate-rhomboid or orbicular-rhomboid, :'>."> t<> •">."> cm. long, 2.5 to 4.5 cm. wide, obtuse 

 or rounded at the apex; flowers rose-colored, dark rose-colored, or reddish- violet , aboul 

 ") nun. long, the pedicel «i."> t<> L3 nun. long; legume long-stipitate, the suture Blightly 

 notched, 1 1 1 « - dorsal margin Binuate as deep as to the ventral Buture; articulations del- 

 toid-semioval, 7 to 8 nun. Long, 1 t<> 5 mm wide 



Near Bayamon in shady places; Sierra de Luquillo in woods halfway t<> the i < » i > < » t* 

 Mouni Jimenez; near Los Mameyes in moisl localities among herbs; near Cayey, in a 

 thicket of ( '".//"' arabica at Pedro Avila; near Adjuntas, in woods on Mount La Vaca. 

 Cuba, Jamaica. Haiti. St. Kitts. Guadeloupe, Dominica. St. Vincent, Grenada, I oeta 

 Rica, Venezuela, Colombia, Chile. 



This plant is extremely common in shady places in Porto Rico. 



Local name, larzabacoa d\ monte. 



ll>. Desmodium axillare acutifolium i Kunt/.e) Urb. 

 (Urban, 292.) 



Stem densely clothed with Long, soft hairs intermixed with short, often very incon- 

 spicuous, hamate ones; Leaflets ovate or ovate-elliptical, acuminate; flowers pale pur- 

 ple; articulation- <<i the pod <» t<» 8 mm. long, I t<> 5 nun. wide. 



Near Bayamon in the woods al Pueblo Viejo, near Juncos on Mount Sant <>de Leon. 

 Cuba, Jamaica, Martinique, St. Vincent, Trinidad, Guiana, and Brazil. 



1( . Desmodium axillare forma robustius Urb. 



(Urban, 292.) 



The stem thicker than in variety angustatum, :'» nun. thick and densely hirsute; ter- 

 minal leaflet L2 cm. Long; flowers rather Longer than in variety angustatum; wings 5 

 nun. Long; pod articulations LO mm. Long, •'> mm. wide: calyx red-brown; petals pale 

 lored; Btamens rose-colored; anthers pale yellow (ex Sintenis). 



Siena de Luquillo, in woods halfway t<> tin- t<>p of Mount Jimenez. 





