558 PROCEEDINGS OP THE AMERICAN ACADEMY. 



c. Heads numerous : branches lanate. 



1. Tips of the involucral scales squarrose : rays 7 to 8 mm. long: leaves remotely 



incurved-dentate, 3 to 5 cm. broad. 



83. V. Oerstediana, Benth. iu Oersted, Vidensk. Meddel. 1852, 

 p. 9G; Klatt, 1. c. xxiii. 144. — Costa Rica, on the side of the Volcano 

 Irasu, altitude 2,000 to 2,500 m,, Oersted, Pittier, no. 11583. 



2. Tips of the involucral scales appressed: rays 1.1 cm. long: leaves essentially 



entire, to 10 cm. broad. 



84. V. lanata. Stem stout, pithy, terete, woolly: leaves elliptic- 

 lanceolate, obsoletely denticulate, pubescent upon both surfaces, 1.5 to 

 2.5 dm. long, 6 to 10 cm. broad, rather abruptly narrowed to a caudate 

 acumination at tlie apex, gradually narrowed below to a wingless woolly 

 petiole 4 cm. in length: branches of the compound flat-topped many- 

 headed corymbs sordid-lanate or -tomentose ; involucre turbinate, about 

 4-seriate, sordid-tomentulose ; scales oblong, obtusish: rays about 10, 

 elliptic-oblong, G mm. long, white (?) ; awns of the pappus long and slen- 

 der. — V. Oerstediana, Donnell Smith, Enum. PI. Guat. pt. 1, 23, not 

 Benth. — Guatemala, Coban, Depart. Alta Yerapaz, //. von Tuerck- 

 heim, February, 1888, no. 1344 of Mr. J. Donnell Smith's sets. 



§10. PsEUDOMONTANOA. Heads small: rays yellow : leaves sinu- 

 ately 3-5-lobed : pales broad. 



* Leaves alternate. 



85. V. fastigiata. Tomentulose, younger parts more or less white- 

 woolly : stems with rather broad herbaceous wings : leaves alternate, 

 palmately 3-lobed, slightly scabrous above, loosely canescent-tomentose 

 beneath, 3-nerved from above the base, 8 to 20 cm. long, 5 to 14 cm. 

 broad, decurrent into winged petioles; nerves prominent beneath: heads 

 numerous, in anthesis 5 mm. in diameter, in fruit 1 to 1.2 cm. in diam- 

 eter, subglobose, in compound flat-topped fastigiate corymbs j scales of 

 the involucre about 3-seriate, unecpial, narrowly ovate, acute, appressed- 

 pubescent and ciliate; pales stramineous, acute, with an erect tip: rays 

 small, pale yellow : achenes broadly winged, pale in color, broadly obo- 

 vate, the body 3 mm. long; pappus of 2 unequal awns. — Mexico, with- 

 out locality. Dr. J. Gregg, 1848-1849, no. 575. 



* * Leaves opposite. 

 ->~ Stems broadly winged : outer involucral bracts minute, ovate, acute, somewhat 

 decurrent upon the puberulent pedicels ; these subumbellate, 1 to 3 cm. long : 

 INIexican. 



86. V. PiNNATiFiDA, Cav. Ic. i. 67, t. 100; DC. Prodr. v. 615; 

 Hemsl. 1. c. ii. 190, excl. synon. and pi. Oersted. — Cuernavaca, More- 



