622 Heller: Plants from Western North America 



The type, preserved in the herbarium of the New York Botan- 

 ical Garden, is Dr. D. T. MacDourral's no. 3 13, collected in a 

 ''canon near the eastern base of liill Williams Mountain, Arizona, 

 July 22, 1898." 



UJI 



P 



ally in the appearance of the spikes. It has, however, the slender, 

 exserted corolla and narrow bracts of Brittomutniiii, and geo- 



graphically would seem rather to belong to that genus. 



to be a connecting link between these closely related genera. 



seems 



Senecio Hartianus sp. nov. 



Perennial, sometimes propagating by underground stolons: 

 stem simple, erect, 3-4 dm. high, lanate, becoming smoother with 

 age : leaves mostly basal, these oval, 12-18 mm. long, some cor- 

 date on petioles i cm. long, others narrowed into a petiole 3-4 

 cm. long, finely serrate ; stem leaves few, scattered, four to si.x in 

 number, the lowest lanceolate, petioled, about 3 cm. long, the 

 others linear, sessile, bract-like, all noccosc, becoming glabrate 

 with age: heads 4-6 in a terminal corymb; pedicels slender, 1-3 

 cm. long, somewhat lanate; involucre 5 mm. high, lanate, or be- 

 coming glabrate, its bracts linear-lanceolate, acuminate,' tipped 

 with purple; rays about 15, oblong, bright yellow, 4 mm. long, 

 I mm. wide : achene glabrous : pai)pus bright white. 



No. 230, collected by Dr D. T. MacDougal, "in valley in 

 open woods near Hart .Spring, San Francisco Mountain, near 

 Flagstaff, Arizona, July 5, 1898. The type specimen is deposited 

 in the herbarium of the New York Botanical Garden., A well- 

 marked species of the S. aureus grouj). 



SOME LONG-STYLED SPECIES OF DRABA 



f 



, Certain remarks lately printed by Prof. E. L. Greene in Pit- 

 tonia concerning the trustworthiness of the statement " authentic 

 .specimen from type locality," as printed on some of my labels be- 



D. 



^ I wish to express my thanks to Dr. B. L. Robinson for the 

 privilege of examining this type sheet, as well as the other ma- 

 terial in the Gray Herbarium which is associated with it under tlie 



