OF ARTS AND SCIENCES, 45 



3. Pectidium. Pappus bi-tricornis, nempe ex aristis paucissimis 

 (1-4) validis corneis stepius divergentibus. 



Of EuPECTis we have on the southern borders of the United States 

 three species of the paleaceous division P. prostrata^ Cav., of Mexico, 

 P. ciliaris, L., and P. linifoUa, Less., of the coast of Florida, these 

 having come from the West Indies. Of the pauciaristate divisions, 

 we have two short-peduncuhxte species which extend into Mexico; 

 P. tenella, DC, and P. an gusti folia, Torr. (the latter more commonly 

 wanting tlie one or two awns, and having a paleaceous crown ; and a 

 peculiar long-peduncled species, P. jiUpes. This cannot be P. Talis- 

 cana or Jaliscana, Hook. & Arn., having very obtuse involucral bracts 

 and only one to three (commonly two) much more rigid awns to the 

 pappus, shorter than in any other Eiipectis. 



The West Indian species I have not the means of elucidating. But 

 it may be doubted if P. prostrata is among them ; and, judging from 

 Lessing's characters, his P. Sieberi and P. serpijlUfoUa, with broad pa- 

 leaceous pappus, cannot have been correctly referred by Grisebach to 

 P. humifusa. His P. Garthusianorum appears to have been collected 

 by C. Wright in San Domingo (280), and by Fendler (1975) in 

 Venezuela. P. Plumieri, Griseb. is of the pauci-(3-l0-)aristate di- 

 vision and '^ P. Jloribunda, Rich." is probably rightly referred to it; 

 for an unnamed specimen from '' Cuba, La Sagra" belongs here. P. 

 Swartziana, Less., and of Griseb., I have not seen ; but P. pratensis, 

 Wright, in Sauvalle Fl. Cubana, 81, which has a pappus of few awns 

 and of interposed paleolfe, probably belongs to it. P. humifusa, Swartz, 

 or the plant taken for it by Lessing and by Grisebach {^Lorentea 

 humifusa. Less., perhaps also his L. sessilijlora) , is well marked by 

 its aristiform paleae (rather than awns), 10 or 12 in number, and a 

 few added delicate setfe outside, which, if considered to form an exter- 

 nal series, gives Lessing's character of Lorentea, Moreover, it may 

 well be the original Lorentea, Lag. {L. prostrata), "pappus paleaceo- 

 setaceus, paleis pluribus infcqualibus," which is said to have the facies 

 of P. prostrata, Cav. Note, however, that Swartz described his P. 

 humifusa as "aristis 5 paleaceis basi laciniatis margine serratis." 



Mexican species of Eupectis are : — 



Pectis prostrata, Cav., depressed, with sessile heads. Schultz 

 Bip. has sent, from a collection by Schaffner, an unpublished P. Schaff- 

 neri. This will probably prove to be a very narrow-leaved form of 

 P. prostrata, the involucre of only 3 or 4 bracts. 



Pectis fasciculiflora, DC, collected only by Ha^nke, is quite 

 unknown to us. 



