1693 



*- 01PL0PAPPU8 incanus. 



HoavD Dlplopappus. 



SYNGENESIA POLYGAMIA SUPERFLUA. 



Nat. ord. Composite. Juss. {Introduction to the Natural System of 

 Botany, p. 197.) 



DIPLOPAPPUS Cassini. Radius uniserialis foemiiieus. Discus herma- 

 pliroditus. Pappus biserialis conformis. Corolla disci regularis. Achcenium 



erostre. Herbae v. fruticuli Americani, Asiatici, v. Africani, foliis alternis 



integris ; capitulis terminalibus, solitariis, colore vario tinctis Lessing. Synops. 

 gen. comp. p. 163. 



D. incanus ; sufFruticosus, foliis linearibus obtusis glauco-incanis semiamplexi- 

 ■caulibus, caulis corymbosi ramulis unifloris, involucri squarrosi foliolis lineari- 

 lanceolatis glandulosis. 



Herba perennis, svffruticosa, incano-tomentosa, subbipedalis, corym- 

 boso-ramosa ; ramulis distanter foliatis monocephalis . Folia omnia linearia, 

 incana, sessilia, apice mucromdata, patentia ; in ramulis floridis sensim eva- 

 nesceyitia. Involucra hemisphcerica, squarrosa, bracteis linearibus, acutis, 

 subglandulosis, interioribus erectis, basi albidis apice kerbaceis. Radius 

 biseriatus, violacevs ; discus luteus. Pappus biseriatus,Jiliformis, pubescens ; 

 serie exteriore abbreviala ; ovario tereti lanato. 



A handsome half-shrubby species, discovered in Cali- 

 fornia by Mr. Douglas, by whom seeds were sent to the 

 Garden of the Horticultural Society in 1832. 



It is easily known from D. linariifolius and its allies by 

 its hoary leaves, and soft flower-heads, which have the 

 leaflets reflexed at the points in a squarrose manner, and 

 covered with minute semi-transparent glands. Its flowers 

 are of a rich lilac, with a bright yellow disk. 



The species is rather tender, and should be protected dur- 

 ing winter in a frame. In summer it grows freely in any 

 hot, exposed situation, for which its Californian constitution 

 particularly qualifies it. 



* So called in allusion to the double row of pappus of the genus. 



