46 PROCEEDINGS OF THE AMERICAN ACADEMY 



Pectis Bonplandiana, IIBK., difFuse, with pedunculate heads; 

 awns of the pappus rishig from broad and short palea; which arc apt to 

 split away, or witli one or two awnless paleai. We have it from coll. 

 Siemann, Liebmann, and Ervendberg ; the last, in Proc. Am. Acad. 

 V. 181, inadvertently named P. Seemanni. That species, of Schultz 

 in Bot. Herald, Bentham has found to be Oxypappus scaler. 



Pectis uniaristata, DC. This, or a plant quite agreeing with 

 the character, we have from Manzanilla, on the western coast of Mexico, 

 collected by Xantus. The heads are slender-peduncled, and the 

 akenes are surmounted by a cupuliform crown and a slender setiform 

 awn, this wanting in some outer flowers. 



A^ar. IIOLOSTEMJIA. Parvula ; corona pappi paullo majore, arista 

 prorsus nulla. — P. Jilipes, Schultz Bip. in coll. Liebm. no. 394, non 

 Gray. This is neither P. Jilipes, nor is that P. Jaliscana (by error 

 Taliscana), Hook. & Arn., to which Ilemsley, following Schultz's 

 naming, has referred it. — Consoquitla, Liebmann. 



Pectis angustifolia, Torn (Pectidopsis, DC), with subsessile 

 or short-peduncled heads, and a squamellate-coroniform pappus, not 

 rarely with one or two short awns to some of the flowers, extends into 

 Mexico as far as San Luis Potosi {Schaffaei'^ 325, Parry S^- Palmer, 

 519, not cited by Ilemsley). 



Coming now to species with aristiforra pappus and no crown : — 



Pectis capillaris, DC, from the southern part of Mexico, with 

 5-aristate pappus (presumably no paleas or crown), is not identified. 



Pectis Jaliscana, Hook. &, Arn. Bot. Beech. 296 (printed Talis- 

 cana, and the habitat " Jalisco" printed "Talisco"), needs to be com- 

 pared with the preceding. It is not P. Jilipes, as Hemsley would have 

 it, following an indication by Bentham. The bristles of its pappus, in 

 two or three flowers which I have examined, though only three in 

 number, are much more slender, and the paleaceous squamella3 are con- 

 spicuous. The published character runs " pappo radii et disci setis 3-6 

 aristatis basi dilatatis paleisque paucis brevissimis." 



Pectis tenella, DC, is a 3-6-aristate species with the aspect of 

 P. angustijolia, but destitute of crown or squamellai. Laredo is on the 

 U. S. side of the Rio Grande ; but Berlandicr gathered it also in 

 Tamaulipas, as did Gregg. 



Pectis Berlaxdieri, DC. More diffuse in the inflorescence than 

 the foregoing (although in no. 1096 of Parry & Palmer this is glom- 

 erate) ; involucral bracts acuminate ; pappus of 5 or 6 setiform awns, 

 or fewer in the ray-akenes. C Wright collected apparently a tall 

 form of the same species in Nicaragua. 



