BOTANY. 



171 



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simo ; foliis angusto-ellipticis acutiusculis ; floribus in axillis siiperioribus fiolituriis deniuui 



pendulis ; perlgonio infundibuliformi tubo breviusculo ; staminibus 5 vix exsertis. (Tab. XLYII, 



A.) Gravelly table land near Presidio del Norte, August ; Parry^ Bigeloiv, Stem apparently 



diffuse, tlie upright branches 6-10 inches high, slender. Leaves 6-8 lines long, 1-2 lines wide; 



the petiole scarcely a line long. Flowers on short pedicels in the uppermost axils, some of them 



fructifying without being fully expanded, but mostly with a dilated funnel-form border and a 



tube 1-2 lines long. Stamens and style a little exserted. Fruit as in the preceding species, 



BoERHAAViA PURPURASCEXS, Gray^ I. c.y p. 321. Hills near the Santa Rita, Copper Mines, New 



Mexico ; Wright. Ea vines and rocky hills, Presidio del Norte, July — August ; Parry y Bigelow. 



The inflorescence at length becomes elongated, the flowers separating from each other and 



forming interrupted or somewhat verticillate spikes. The species is closely allied to B. spicata, 

 Clioisy. 



i**- BoERHAAvrA Wrigiitii, Gray^ I. c. Santa Barbara, southern New Mexico, August ; Bigeloio. 



Near El Paso ; WrigJit, Copper Mines^ New Mexico ; Thiirher. 



BoERHAAViA LiNEARiFOLiA, Gray^ L c. Arid soils ; valley of the Rio Grande, and near the 

 Copper Mines, New Mexico, June — August. The lower leaves are sometimes ovate-lanceolate. 



BoERiiAAViA ERECTA, Linn.; Clioisy^ ?, c. p. 450. Western Texas, New Mexico^ and Chihuahua, 

 June — August. We follow Dr. Gray in referring to this species, various forms of an annual 

 Boerhaavia, of which there are numerous specimens in the collection, B. erecta, however, is 

 said by Choisy to be perenniah 



Boerhaavia pa^iculata, Rich.; Choisy^ I. c. Western Texas, near the Rio Grande, June 

 August, 



Boerhaavia anisophylla (n. sp.) : caulibus glabriusculis difiiisis basi lignosis ; paniculis laxe 

 ramosissimis inferne nudis, ramulis filiformibus ; foliis ovatis cordatis brevi-petiolatis glabris 

 undulatis in eodem pari inequalibus supra pallidis subtus albidis ; floribus laxe subcymosis 

 breviter pedicellatis basi 3-bracteolatis, bracteolis persistentibus lanceolatis acutissimis; peri- 

 anthiis rotatis ; staminibus 5-8; fructibus obovato-oblongis glabris 5-costatis (non truncatis), 

 costis angustis. Entrance of the Great Canon of the Rio Grande, October ; Parry, Bigeloiv. 

 Plant 1-2 feet high. Lower part of the stem slightly pubescent. Leaves in pairs, unequal in 

 size, the larger an inch long and half an inch or more broad. Perianth nearly half an inch in 

 diameter with scarcely any free tube, purple. Stamens and style much exserted. Fruit a line 

 and a half long. Near B. linearifolia, but that is glandularly viscid or villous, the leaves are 

 usually much narrower and hispid on the margin, and the coist^ of the fruit are thick and 

 rounded. Dr. Parry collected at tbe Presidio Incomplete specimens of another Boerhaavia^ 

 which may be undescribed. It difiers from B. anisophylla in the much larger and more 



diffused panicle, smaller flowers, which are mostly solitary at the extremity of the branchlets, 

 the hispid tube of the perianth, and the hairy fruit. 



Boerhaavia spicata, {Choisy^ l. c. p. 456?) : caulibus e radice annua erectis minute pubescenti- 

 bus ; foliis ovatis sa3piu8 obtusis integris repando-dentatis v. undulatis, inferioribus subcordatis; 

 paniculse ramulis in racemis sparsifloris desinentibus ; bracteis bracteolisque lanceolatis cuspi- 

 datis ; floribus (minutis) triandris ; fructibus cylindraceo-clavatis glabris obtuse 5-costatis apice 

 rotundatis. Ravines and damp sandy places. Presidio del Norte ; Parry ^ Bigeloio. Chihuahua ; 

 Thiirher. Valley of the Gila; Schott ; May — September. Plant 12-18 inches high, slender 

 the stem somewhat viscous. Leaves an inch long, on conspicuous petioles, often dotted, Racemes 

 when in flower scarcely half an inch long, but in fruit 1-2 inches. Flowers scarcely a line in 





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