222 PROCEEDINGS OF THE AMERICAN ACADEMY 



brevi lato capsula semiclaudente longiorlbus ; corolla minima ; semini- 

 bus paucis (5-G) sat magnis. — Santa Catalina Mountains, S. Ari- 

 zona, Pringle. Mostly in fruit, April 19, 1881 ; earlier specimens 

 may have a less inconspicuous corolla. A. occidentalis has been col- 

 lected in the same mountains. 



GoMPHOCARPDS HTPOLEUCUS. Asclepiadi lanuginosce (Mexi- 

 canne) hand dissimilis ; caule valido bipedali puberulo ; foliis omnibus 

 oppositis ovalibns brevi-petiolatis supra glabratis viridibus infra albo- 

 tomentosis ; pedunculis umbella multiflora longioribus ; corolla viridula, 

 segmentis ovali-oblongis (lin. 4 longis) ; cucullis atropurpureis carno- 

 sis erectis (antheris duplo longioribus) oblongo-ligulatis et basi hastatis 

 sed lobis seu appendicibus triangulatis acutis arete inflexis, facie interna 

 baud fissa. — Santa Rita Mountains, Arizona, Pringle* 



* The following Gentianece are contributed by Dr. Engelmann : — 

 Erythrjea nudicaulis, Engelm. Biennis, E. DougJasii proxima ; caule hu- 

 miliore erecto sursuni laxe brachiato-rainoso ; foliis infimis ovatis basi breviter 

 contractis rosulatis, caulinis paucis lineari-lanceolatis ; floribus paucis longe 

 pedunculatis ; calyce tubum coroUse vix ccquante ; lobis corollae oblongis obtusis 

 planis tubo paullo brevioribus ; antheris lincari-oblongis ; stylo ovario multoties 

 breviore ; seminibus subglobosis reticulatis. — Base of Santa Catalina Moun- 

 tains, Arizona ; fl. April, C. G. Pringle. This is distinguished from all the 

 North American species by its rosulate leaves (4 to 6 or 8 lines long) and 

 almost naked stem, 2 to 6 or 8 inclies high, with small and narrow distant 

 leaves, and few (rarely more than 4 to 6) very long-peduncled flowers; these 

 are scarcely more than 5 lines long, rose-purple with yellow throat ; anthers 

 (soaked) from half to nearly a full line long ; stigmas broadly fan-shaped. 

 From the nearly allied E. Douglasii it is distinguished by its radical leaves 

 and whole growth, by a much shorter flower-tube in proportion to the lobes, 

 and rather smaller seeds. 



Gentiana microcalyx, Lemmon in litt. Annua, erecta, pedalis seu sesqui- 

 pedalis, fastigiato-ramosa ; foliis sessilibus e basi subcordata ovato-lanceolatis 

 margine sub lente scabrellis ; floribus inferioribus longe pedicellatis in apice 

 ramulorum cymoso-aggregatis (fere 5 lin. longis albidis denmm pallide violaceis) ; 

 calyce profunde inasqualiter 5dobo tubo corollas ter quatcrve breviore ; lobis 

 corolla; patcntibus lanceolatis acutiusculis basi nudis tubo subcylindrico brevi- 

 oribus ; ovario subscssili in stylum brevissimum attenuato ; seminibus globosis 

 Iteviusculis. — Arizona, Mr. Sj- Mrs. Lemmon. — Leaves thin, and, with the excep- 

 tion of the middle ones, almost without nerves, from an inch to an inch and a 

 half long. Flower 5 lines, calyx 1 line long. Allied to G. Wislizeni of the 

 same region, but distinguished by the smaller proportions, thinner leaves, and 

 especially the shape of the calyx and the absence of any fringe in the throat of 

 the corolla, whereby it stands next to the much larger and coarser G. qmiKjwJiora. 



G. Englemann. 

 Mr. Lemmon has published a description and a woodcut of this new Gentian 

 in the Pacific Rural Press, of Feb. 25, 1882. It was collected on the summit 

 of the Chirricahua Mountains, in the southern part of Arizona, Sept. 30, 1881. 



