A TRIBE OF LEGUMINOSE. 55 
55. M. eriostemon. (Brasilia.) 
56. M. floribundum. (Guiana, Brasilia bor. et occid.) 
$1. LINEATA. 
1. M. гомотғоілом (Benth. in Mart. Fl. Bras. Leg. ined.), stipulis 
lato-lanceolatis demum indurato-spinescentibus, foliolis 25-35 lineari- 
oblongis obtusis retusisve crebre lineato-venosis utrinque pilosis, 
racemis laxe subpaniculatis rufo-pubescentibus glabratisve, staminibus 
isadelphis, carina ovarioque valde arcuatis. 
Hab. North Brazil (Spruce, n. 1661). 
Differs from the М. angustifolium chiefly in its longer, more hairy, 
and thinner leaflets, and some other details which give it a very distinct 
aspect. . 
2. M. ANGusTIFOLIUM (Vog. Linnea, xi. p. 193), stipulis induratis 
demum spinescentibus, foliolis 25-61 lineari-oblongis obtusis retusisve 
crebre lineato-venosis glabris v. subtus minute puberulis, racemis pani- 
culatis fusco-pubescentibus, staminibus isadelphis, carina ovarioque 
valde arcuatis.—M. affine, Benth. in Ann. Mus. Vind. ii. p. 100; M. 
acaciefolium, Mart. Herb. Fl. Bras. n. 1310; M. armatum, Уор. Lin- 
nea, xi. p. 191 (specimina cujabensia foliolis paullo longioribus lati- 
oribusque) ; Drepanocarpus isadelphus, G. F. W. Mey. in Act. Acad. 
Nat. Cur. xii. p. 807 ex descr. ; M. violaceo-purpureum, Duchass. in 
Walp. Ann. ii. p. 437.—Foliola vulgo vix 3-1 poll. longa, 2-24 lin. 
lata. Flores 5—6 lin. longi, vexillo subsericeo. Legumen rectiusculum 
ad semen vix introrsum. 
Hab. Widely spread over South America, frequent in Brazil, both 
southern and northern (Blanchet, n. 29, 2297, 2416) ; in Eastern Peru, 
Tarapoto, Spruce, n. 4556 ; in British Guiana, Schomburgk, lst coll. 
no. 78; Venezuela, Funcke, n. 405; М. Grenada, Holton, n. 982; 
Panama, Hinds, Duchassaing. 
Fendler's n. 2228 from Venezuela, of which I have seen only a poor 
specimen, may be a variety of this species. His n. 1750 and 1866 of the 
2nd coll., described below under M. Moritzianum, have also nearly the 
venation of this and the next species, but with rather more reticulation. 
З. M. AMPLUM (Bent. in Ann. Mus. Vind. ii. p. 97, et in Mart. Fl. Bras. 
Leg. ined.), stipulis brevibus demum indurato-spinescentibus, foliolis 
11-17 oblongis obtusis retusisve crebre lineato-venosis glaberrimis, 
racemis ample paniculatis vix canescenti-puberulis, staminibus mona- 
delphis, carina ovarioque incurvis.—Foliola quam in precedente ma- 
jora, pauciora. Flores paullo majores, vexillo sericeo. Carina minus 
arcuata. Staminum vaginam in dorso semper per anthesin integram vidi. 
Hab. Brazil, chiefly in Goyaz and to the northward (Gardner, n. 4116). 
4. M. AcuLEATUM (Raddi, Tul. Arch. Mus. Par. iv. p. 89; Benth. in 
Mart. Fl. Bras. Leg. ined.), stipulis demum indurato-spinescentibus, 
