ROBINSON AND GREENMAN GENUS VERBESINA. 547 



b. Leaves all alternate. 



39*. V. yiGUiEROiDES, Baker, 1. c. — Paraguay at Caaguasu, Ba- 

 lansa, no. 852a. 



++ ++ Stems wingless : heads corymbose : South American shrubs. 



= Scales of the involucre short, obtuse or obtusish, very unequal: leaves slender- 

 petioled, not at all auricled. 



40. V. GLABUATA, Hook. & Am. in Hook. Jour. Eot. iii. 315 ; Baker 

 1. c. 211. V. hellanthoides, Gardn. in Hook. Loud. Jour. Bot. vii. 424, 

 ace. to Baker, 1. c. — Common in the woods of E. Brazil, Martius, no. 

 821, Burchell, no. 4593, Sello, nos. 863, 804, 1100, 1101. 



= = Scales of the involucre about 2-seriate, not very unequal, obtuse to acute, 

 canescent-tomentulose : wings of the achenes very narrow : petioles very 

 short, narrowly wing-margined and subauriculate at the base or none; leaves 

 cauescent-tomentose beneath. 



a. Andean. 



41. V. ELEGANS, IIBK. Nov. Gen. & Spec. iv. 204; Klatt, Leo- 

 poldina, xx. 93. — Andes of Ecuador, Humboldt »fe Bonpland, Jameson, 

 Couthouy. 



b. E. South American. 



42. V. SUBCORDATA, DC. Prodr. V. 614 (where described as a shrub) ; 

 ? Baker 1. c. 213 (where described as a perennial lierb). ? V. auricidata, 

 Hook. & Arn. in Hook. Jour. Bot. iii. 315, not DC. — Uruguay and Ar- 

 gentine Republic. 



= = = Scales of the involucre caudate-attenuate, very unequal, gray-villous : 

 leaves sessile, subauriculate at the base. 



43. V. Mandonii, Sch. Bip. in herb. Grayish-pubescent shrub with 

 terete wingless branches: leaves alternate, ovate-lanceolate to lanceolate, 

 acuminate to attenuate, subentire or repandly few-toothed, finely ap- 

 pressed-pubescent and somewhat scabrous above, soft-pubescent and paler 

 but green beneath, piunately veined, 6 to 15 cm. long, 1.5 to 3 cm. 

 wide, narrowed (gradually or more abruptly) to a sessile sub-biauricu- 

 late base ; the auricles slightly decurrent and tending to persist upon the 

 stem after the fall of the leaf: corymbs about 12-headed, flat-topped, 

 villous to tomentose ; iuvolucral scales 3-4-seriate, linear, acute to atten- 

 uate: rays about 14, oblong, light yellow, 1.2 cm. long, 4 mm. wide: 

 achenes of the disk-flowers oblanceolate, attenuate at the base, narrowly 

 and equally winged on both sides above, the wiugs extending upward on 



