



Plate 2504. 









ERYNGIUM LONGIPETIOLATUM, Ilemsl. 



Umbellifer^:. 



E. longipetiolatum, HemsL («p. nov.)) species inter E. longirarneiim 

 et E, scaposum medium tenens, cliffert imprimis foliis radicalibus longe 

 petiolatis oblongis basi cuneatis. 



Perenne ? undique glabrum, omnino inerme. Radix crasse fibrosa. 

 Caulis erectus, pauciramosus, foliiferus, 1-2| ped. altus, 2-3 lin. dia- 

 metro, oligocephalus. Folia radicalia et caulina inferiora longe petiolata 

 (petiolo interdum usque ad 10 poll, longo), crassiuscula, anguste ovato- 

 oblonga, absque petiolo 1-3| poll, longa et 9-18 lin. lata, apice obtusa 

 vel rotundata, basi cuneata, vel caulina subcordata, truncato-crenata 

 atque albo-marginata, caulina superiora sessilia, basi aurieulata, 

 amplexicaulia, sursum gradatim minora. Capitula ternata, vel in 

 ramis lateralibus solitaria, longe pedunculata, hemisphrerica, quam 

 bractese breviora. Involucri bracteaz 9-12, contigupe vel inter se 

 obtegentes, rigidse, oblongse, angustre, 3-6 lin. longse, apice sa^pius 

 rotundatie, brevissime spinosse, supra medium ssepissime bispinoso- 

 dentat^e, raro dentibus 2-3 additis. Palece e basi lata subulate, 



I incurvie, demum rigidse, flores superantes. Calycis denies angusti, 

 ovati, subspinoso-apiculati, circiter ^ lin. longi. Petala non visa. 

 Carpella circiter 1 lin. longa, pnecipue supra medium squamis acutis 



\ obtecta, stylis elongatis recurvis ; vittte sa-pius 5, quarum 2 ad com- 



* missuram, parvse. 



t v Mexico : near San Cristobal, Chiapas, at 7.000 to 8,800 feet, 



Nelson, 3151. 



This and the following seven plates illustrate, to a small extent only, 

 the variety in habit, foliage, and fruit exhibited by the Mexican species 

 of Eryngium. — W. Botting Hemsley. 



Fig. 1, a Lract; 2, a pale; 3, a fruit; 4, a meriearp; 5, a cross section of 

 a mericarp.— All enlarged. 







