r 



42 



The Botanical Gazeite. 



ri 



[February^ 



L 



Yeriionia Heydeana, n. sp. ' Like the last; but lower (2" 



high), with broader leaves which are often not so taper- 

 pointed at either base or apex, 6-flowered heads, involucral 



scales in but two or three muc^ ' "-- -'' ^^^ -^ ^^^»^ 



obtuse, and glabrous achenes. 



San M 



Uspantan, De- 



Quiche, alt. 6-12,000", April 1892, Hey 



The two preceding species, with V. Palmeri Rose, may all 

 be forms of one shrubby species which extends the whole 

 length of western Mexico. With the matenal at hand the- 

 forms are readily separated, but they give evidence of such 

 close relationship that more abundant matenal may show m- 

 tergradations. 



Vernonia PATENS HBK.— SantaRosa,Depart. SantaRosa 



alt. 3,ooo% Februar> 



Heydi 



A South 



American shrub 2 to 3" high, heretofore not reported north 



Dep 



peana 



Ternonia Shannoni, n. sp.— A tree (height unreported): 

 leaves long-oval, taper-pointed at each end, petioled, entire, 

 glabrous: heads 5-flowered, somewhat closely corymbose and 

 pedicellate: involucral scales in five or six rows, the inner ones 

 elongated-oblong and obtuse, the outer ones becoming grad- 

 ually shorter, more broadly ovate and acutish, all somewhat 

 purpHsh-tinted and sparsely hairy on the margins: achenes 



glabrous. — "Continental divide," Depart. San M^rcos, alt. 

 9,191"» January 1892, W. C. Shannon 60^. 



The material is very scanty, but seems sufificient for char- 

 acterization and subsequent recognition. Apparently very 

 nearly related to V. liatroidesBC and V. serratuloides HBK., 

 but they are herbaceous. Mr. Shannon notes the tree as be- 

 ing ••white-flowered." 



__^ ^ ^ _ ^ More or less rough pubescent 



throughout: leaves short pe*tioIed, ovate, crenate, acuminate, 

 thickish (almost coriaceous), somewhat scabrous above and 

 more softlyand abundantly hairy beneath especially alongthe 

 prominent reticulations, 5 to 7™ long: heads purple-flowered, 

 the linear involucral scales with slender often elongated acu- 

 minations: pappus of five lanceolate scales, but one, two or 

 three of which taper into awns: achenes very glabrous. — Santa 



Hey 



& Lux 4, 243 



The whole habit of this species is that of A. corymbosunt 



Y 



