V. 



PLANT^ WRIGHTIANiE. 



51 



spreading or droopmg, eacli subtended by a small subulatc bract. Bractlets 



Caly 

 5-ne 

 Vex 



5 



long, glbbous at the base 



tube 



lobes about half the length of the 



ith a broad 



gular-subulatc, the two upper uiiited nearly to the middle 



claw: the wings and keel-petals with lon^cr and slcndcr 



claws, their lamina obliqucly truncate at thc base. Anthcrs uniform, oblong. Ovary 

 slender, smooth, as well as the filiform style, up to the apex, where it is surrounded 



hairs : and 



dcprcssed terminal stig 



somewhat unequal, aspcrgilliform tuft of 

 is bearded with similar, but rather sh 



hairs 



The pendulous pods are two inches or more in lcngth, a quartcr of an inch widc, 

 oftcn narrowed where the seeds are abortive, but continuous, flat, usually ripening 

 only 3 or 4 round and flat seeds. — Unable to rcfer this striking plant to any known 



a ncw one, which I dcdicate to 



is the worthy associate of Dr. 



on the Botany of Kcntucky. 



genus 



of 



I 



characterize 



the mcmory of the late Dr. Robert Pcter, wdio wa 

 Short in botanical researches, and in publications 



Very few specimens were obtained by Mr. Wright in 1849, and those only in fruit 

 but an abundance of complcte and beautiful specimcns occur in that portion of his 



The gcnus is ncarest allicd, pcrhaps, 



of 1851 which has comc to hand 



to Carag 



The aspergilliform style is something as in I. 



139 



AsTRAGALus Wrightii, Graij^ Pl. Lindh. 2. ». 176 



pumilus, hir 



tipulis subulatis liberis ; foliolis 3 - 5-j 



suto-canescens ; caule subsimplici 



oblongis acutiusculis ; pedunculis 



parvis ; calyce hirsutissimo, lobis lineari-subulatis attenuatis corollam violaceam 



folio 



longioribus paucifioris ; iloribus capitatis 



gumine 



brevioribus 

 Lindheimer 



oblongo hirsuto subtereti fere biloculari 6 - 4-spermo dimidio 

 Dry soilj near Austin, Texas. Also found iu Western Texas, by 

 An inconspicuous, well-marked species.t 



% 



« 



I- 



In Dr. Wislizenus^s coUection is a Clitetocalyx which shows none of the setose glands from which the 

 name of the genus was taken : 



CniETOcALYX WisLiZENi (sp. nov.) : prostratus, pubcrulus ; foliolis 5 rotundatls venulosis concoloribus; 

 calyclbus non glanduloso-setosis, dentibus parvis ; vexillo extus puberulo ; carina alis subduplo breviore ; 

 staminibus diadelphis. — Battle-ground of Sacramento, near Chihuahua, Mexico. — Herbaceous, slender : 

 leaflets half an inch long, stipules short, Corolla golden-yellow. Fruit not seen. 



t I avail myself of the ample materials accumulated in Slr William Hooker^^s herbarium to arrive at a, 

 better understanding of Astragalus caryocarpus, and the species nearly allied to it, viz. : 



A. cARYOCARPus, Kcv. Bot. Rcg. t 176 ; HooL Fl Bor.-Am. 1. p. 150 ; Torr. ^ Gray, FL L p, 331 ; 

 Engelm. Sf Gray, PL Lindh, p, 34 (no. 230) ^ 2. p. 176 {no. 596). A, carnosus, NutL Gen. 2. p. 

 100 (non Purshy nisi fructu). A. succulentus, Richard. in FrankL Jour. ; LindL Bot. Reg. t. 1324. 

 This has a violet-purple corolla, and ovate^ poinled legumes, about two thirds of an inch in diameter. 

 The two cells are quite small in proportion to the thickness of the walls, — The calyx is as figured in Boi. 

 Reg. t. 176. 4- L 1324. The pubescence of the foliage, &c-, is fme and close, and the whole hue in the 

 living plant (from Missouri) glaucescent, as in the original figure of A. carj^ocarpus {t. 176) ; but the 

 more northern form of the plant is smoother and greener, as in the figure of A. succulcntus, Bot. Reg. t. 

 1324, which accords very well with Richardson's, DougIas's, and Drummond's specimens. No fruit of this 

 northern form is yet known. The hairiness of the calyx, as in the others, may be either white, gray, or 

 blackish. 



A. Mexicanus, Alph. DC. PL K Genev. noL 5. p. 17. L 3 (excl. fig. 6, 7), which is A. trlchocalyx, 

 Nuit. in Torr. ^ Gray, L c. (though the villoslty of the calyx is scry variable, and furnishes no reliable 



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