TI. PLANTJE WRIGHTIAN^. 53 



bus (8-12 lin. loiigis.) — Stony soil, between the copper mines, New Mexico, and 

 the Chiricahui jNIountains ; Sept. (1043.) Also between the Leona and Rio Frio, 

 Western Texas; July. (1367.) — Stems upright, a foot or more high, from a 

 thick woody caudex. Pods 2-3 or even 4 inches long, strigosely silky-canescent. 

 tapering from the middle to the base, but not truly stipitate. — Engelmann described 

 the species from Gregg's stunted specimens : these are well-developed ones ; those 

 from New Mexico are more silky-pubescent ; so that I fear the species is hardly 

 distinct from C. eriophylla, Beiith. 



C. coNFERTA, Beiitli. hi PL Wricjht. h c. Limestone hills near the San Pedro, 

 Western Texas ; July. (1368.) 



C. HUMiLis, Benth. in Lond. Jour. Bot. 5. p. 103. C. herbacea, Engelm. in PL 

 FendL p. 39; Gro}/, PL Wrifiht. p. 63. Hill-sides of the Limpio, and westward; 

 June. Also at the copper mines ; and near Santa Cruz, Sonora ; Sept. (1044.) — 

 The stems are herbaceous nearly to the base, at most a span high, from a lignescent, 

 very long and horizontal root. The pubescence is either copious, or at length 

 nearly all deciduous. Pinnaj 3-6 pairs, 1-2 inches long. ^lost of the capitula 

 are on peduncles of about an inch in length, Avhile' others are sessile or nearly so. 

 The very young pods are hirsute; the mature ones hirsute-puberulent or glabrate: 

 valves coriaceo-membranaceous, with very thick margins. " Stamens pale red." 



C. RETICULATA (sp. nov.) : pilosa, niox glabrata ; caulibus spithamaeis diffusis 

 subherbaceis e radice magna lignescente; stipulis ovatis nervosis ; pinnis 1 - 3-jugis ; 

 foliolis 4-11-jugis ovalibus obtusissimis obliquis 3 - 5-nerviis laxe reticulatis supra 

 nitidulis glabris ; pedunculis petiolo communi subsequilongis ; calyce ad medium fere 

 5-fido hirsuto corolla glabriuscula dimidio breviore ; legumine glabello, valvulis 

 membranaceo-coriaceis marginibus incrassatis. — Stony hills at the copper mines, 

 New Mexico; Aug. (1045.) — Manifestly related to the foregoing, and with the 

 same low and nearly herbaceous stems from a lignescent root, which is one or two 

 feet long. But the pinnae (1 to 2v inches long) are rarely more than two pairs, 

 and the leaflets are from 3 to 5 lines long, li to 2\ lines wide, more conspicuously 

 nerved and reticulated ; and the calyx is fully half the length of the corolla. Sti- 

 pules rigid, 2 lines long, ovate, or the uppermost oblong or lanceolate. " Filaments 

 pink," exserted 3 or 4 lines. Immature legumes as in C. humilis. 



Leuc^na retusa, Benth. in PL Wright, p. 64. Pebbly banks of the Rio Frio, 

 Texas, and west to the Limpio, May, June. (1046.) — " Stems much branched 

 from the root, 4-6 feet high." 



Acacia Wrightii, Benth. in PL Wright, p. 64. Prairies of the Rio Frio, to 

 Los Moros, Texas. (1047.) — " A spreading bush, 4 to 10 feet high." 



A. Greggii, Grai/, PL Wright. p. 65. Hills of Live Oak Creek, Western Texas ; 

 May. Also between Van Home's Wells and the Rio Grande; June. (1048.) 



A. Coulteri, Benth. in PL Wright, p. 66. Prairies between Piedra Pinta Creek 

 and Los Moros; July. (1369.) — The specimens are in flower, with a single ripe 

 pod of the preceding year. The shrub is said to be from 4 to 6 feet high ; the 

 branches are armed with a few minute prickles. The pinnte are 5 to 6 pairs. The 

 densely-flowered spikes are oblong or cylindrical, not over an inch in length and 



PL. WR. 8. • 



