i 



100 



PLANTiE "WRIGHTIAN^ 



V. 



• rigidis, hirtellis, coroUa dimidio brevioribus, majoribus achenio quadrangulari- 



compresso sequilougis. 



. 300. Laphamia rupestris (sp. nov.) : subyiscoso-pubescens, nana ; caulibus dif- 



fusis ramosis usque ad apicem foliosis ; foliis sgepissime oppositis rotundatis, nunc 



reniformi-subcordatis grosse dentatis incisisve longe petiolatis ; capitulis subcorym- 



bosis brcviter pedunculatis folia iloralia subsequantibus. (Tab. IX.) — Crevices 



of rocksj on mountains, in the Pass of the Limpia ; Aug. 



1851. 



Also in the collection of 



/ 



Stems slender, 3 to 5 inches long, very numerous. from a branching woody 

 caudcx, as thick as a man's thumb. Leaves not rarely alternate, especially the low- 

 er ones, rather thin, pubescent when young, sprinkled with some very minute resin- 

 ous particles (as in Eupatorium), veiny, variable in shape and in the degree of 

 toothing, sometimes deeply laciniate-incised, sometimes barely crenate-toothed, from 

 half an inch to an inch in breadth: petioles 3 to 5 lines long. Heads cylindra- 

 ceous, 3 Hnes long, on peduncles of nearly the same length. Scales of the involu- 

 cre oblong-Ianceolate, ciliate. Branches of the style narrowly subulate. Achenia 

 narrowly oblong, hirsute, compressed, but more or less quadrangular. Pappus of 

 about 20 rather rigid, but capillary, unequal, barbellate-hispid bristles. 



2. Laphamia 



Involucrum campanulatum 



br 



15-phyllum, 18-30-florum 



Ligulse 4-6, 



specie null 



ampliata cylindracea tubo gracili valde glanduloso vix long 

 pressa, binervia, exteriora nunc trinervia. Pappus unisetosu 



Corollfe disci fauce 

 ore. Achenia com- 



* 



Capitula parvula corymbosa : pappus 



301. L. HALiMiFOLiA (sp. nov.) : glabella 



caulibus rigidis usque ad apicem 



foliosis ; ^oliis plerumque alternis ovatis basi cuneatis vel rhomboideis g 

 3gulariter dentatis nitidulis resinoso-punctulatis ; capitulis confertim corymbo 



ligulis late ovalibus 



(Tab. IX.) — Crevices of rocks 



the summit of hills 



the San Pedro Riv 



July, 



1851 



AIso (much better specimens) in the collection of 



Caudex woody, nearly an inch thick, branching, bearing numerous some 

 what upright and slender stems, from 3 to 6 inches high. Leaves rather firm ir 



mch or less 



th, 5 to 8 lines wide, three-nerved from the base 



veiny, beset with from 2 to 4 usually strong 



teeth on each side: petiole 



long. Heads numerous, in the specimens of the later collection very 



merous, in a naked and 

 long, 1 8 - 20-flo wered 



pound fastigiate corymb, scarcely more than 2 lines 



Scales of the involucre about 10, linear-lanceolate, glabrous, 

 vUlous-ciliate at the tip. Ligule short and broad, 3-toothed at the apex. Branches 



margined 



of 



tyle in the disk-flo^^ 



subulate. Achenia 



caud 



th two strong nerves, which are minutely hispid, the sides neaiiy glabr< 



+ L. ANGusTiFOLiA (sp. nov.) : glabella, nana ; caulibus simplicibus confertis 



crassissimo; foliis oppositis vel alternis lanceol 



grosse 



dentatis 



pitulis laxe corymbosis ; ligulis 



punctatis 

 Between 



Nearly 



Texas and El Paso; coll. of 1851; the locality not yet g 



L. hahmifolia, and with a simUar very thick and woody caudex, which sends up 

 close tuft of stems, in these specimens all simple and barely three inches high, fasti 

 giate; the leaves less veiny, much narrower (one or two lines wide), and more com. 



