28 



The above description was written in 1899, for insertion 

 under the sub-head " Some long-styled Species of Draba," in my 

 article in the Bulletin of the Torrey Botanical Club for Decem- 

 ber, 1899, but omitted until comparison could be made with 

 a related plant. 



Petalostemon pubescens (A. Gray) 



Petalostemon violaceiim var. piibescetis A. Gray, PL Wright. 



1: 46. 1852. 

 Petalostemon virgatum Scheele, Linnaea, 31: 401. 1848; 



not Nees, 1839. 

 Kuhnistera piilcherrima Heller, Cont. Herb. F. & M. Coll. 



1: 50.//. 2. 1895. 

 Petalostemon pulcherrimum Heller, Bull. Torrey Club, 36: 



_ 593- 1899- 

 This beautiful species has been burdened with much syn- 

 onymy mainly by the writer, who may perhaps be pardoned for 

 not earlier understanding the true place of publication of the 

 first available name, when viewed in the light of the preceding 

 article. 



Veruoiiia Guadaliipeusis 



Finely and closely pubescent: stems simple, erect, about 7 

 dm. high, purplish, striated, leafy throughout: leaves numerous, 

 elliptic-lanceolate and somewhat scythe-shaped, 5-9cm. long, 

 maximum width 2cm., acuminate, more or less shortly spinulose- 

 denticulate, sessile or nearly so, bright green and sparingly pu- 

 bescent above, pale below with a soft, close pubescence, promi- 

 nently veined, the midrib yellowish: heads numerous but not 

 closely crowded, usually rather long-peduncled: involucres cam- 

 panulate, cobwebby pubescent and resiniferous, 5-7mm. high, 

 4-5mm. broad, the bracts oblong, or the lower ones ovate-oblong, 

 purple-edged, acute with a short keel-like acumination, the tips 

 erect or slightly spreading: achenes glabrous, somewhat resin- 

 iferous: pappus purple, or the upper part merely tawny. 



