Carloicrirjhtia. ACANTHACE^. 327 



++ ++ Calyx-lobes lanceolate or linear, hardly surpassing the capsule: cleistogamous flowers 

 conuuon. 



R. Strepens, L. Green and almost glabrous or pubescent, 1 to 4 feet high : leaves oblong- 

 ovate or oblong, 2 to 5 inches long, mostly contracted at base into a short petiole : calyx 

 sparing!}' soft-hirsute or ciliate : well-developed corolla 1^ or 2 inches long, with tube 

 about the length of the campanulate-funnclform throat and limb. — Spec. ii. 634 (partly) 

 & Mant. 422; Sclik. Ilandb. 1. 177 ; Pursh, 1. c. JJipteracantlius strepens,'i^ees,,\. c.,ma,m\y. 

 — Dry soil, Penn. to Wisconsin, Florida, and Texas. 



Var. cleistantlia. Leaves commonly narrower and oblong : flowers for most of the 

 season cleistogamous. — Dipteracanthus [Meiophanes) viicranlhus, Engelm. & Gray, PI. Lindh. 

 i. 49. D. strepens, var. strictus, Nees, 1. c, mainly. Hi/grophila lllinoiensis, Wood in Bull. 

 Torrey Club, v. 41. — Common with the ordinary form. 



5. STENANDRIUM, Nees. (Composed of o-to'o'?, narrow, and diSpeiov, 

 the hall for men, alluding to the narrow corolla?) — Low and small iieretinials, 

 all American, commonly vvitli leaves all at base of scapiform Howering stems ; 

 the flowers spicate ; corolla rose-colored or purple. 



S. dulce, Nees. Hirsute-pubescent or glabrate : leaves all radical, oval or oblong, thick- 

 isli, !> to 10 lines long, either narrowed or abruptly contracted into a rather long naked 

 petiole : scape equalling or shorter than the leaves, capitately few-flowered : bracts lanceo- 

 late, longer than the calyx, usually hirsute-ciliatc (either nerveless or 3-nervcd) : tube of 

 the corolla narrow, rather longer than the calyx, the limb half inch or more in diameter : 

 capsule clavate-oblong, somewhat terete. — DC. Prodr. xi. 282, with S. trine.rve. Ruellla 

 dulcis, Cav. Ic. vi. 02, t 585, fig. 2. (Mex. to S. Chili.) 



Var. Floridanum. Glabrous, only the upper bracts and bractlets lightly hirsute- 

 ciliate. — Indian River, E. Florida, Palmer. 



S. barbatum, Torr. & Gray. Very hirsute with long and shaggy white hairs, many- 

 stemmed from the root; a span or less high: leaves crowded, oblanceolate, attenuate at 

 base into an indistinct petiole, above passing into the lanceolate and crowded foliaceous 

 bracts of the rather many-flowered spike, which nearly equal the corolla: tube of the 

 latter hardly longer than the calyx ; limb over half inch in diameter : capsule ovate, 

 obcompressed, not attenuate at base: seeds hispid. — Pacif. R. Rep. ii. 1(58, t. 4, & Bot. 

 Mex. Bound. 122. — Plillsides, western borders of Texas and adjacent parts of New Mex- 

 ico, Wrijjht, Grn. Pope, &,c. 



6. BERG-tNIA, ITarvey. (In honor of 3fr. Bergin, of Dublin.) — Benth. 

 (fe Ilooli. Gen. ii. 109G. A single species. 



B. virgata, Harvey. Low and branching, apparently suffruticose, minutely cinereous- 

 puberulent: branches slender: leaves linear-oblong, nearly sessile (lialf inch long); the 

 upper smaller and passing into obscurely 3-nervcd bracts of the loose and interrupted 

 spike: calyx ratiier longer than the bracts, 2-bracteolate : corolla probably white, less 

 tlian half inch long ; its lower lobe bearded at and below the base. — Gray, Bot. Calif, 

 i. 588. — "California," Coulter. Probably Arizona: not since found. 



• 



7. CARLOWRtGHTIA, Gray. {Charles Wright, the discoverer of one 

 species, the earliest explorer of the district it inhabits, a most assiduous and suc- 

 cessful collector and investigator of the botany of several parts of the world.) — 

 Much branched undershrubs, minutely cinereous-puberulent or glabrate ; with 

 slender branchlets, small and narrow entire leaves, and rather small loosely 

 spicate or paniculate-racemose flowers : corolla purple. — Gray, Proc. Am. 

 Acad. xiii. 364. 



C. linearifolia, Gray, 1- c. A foot high, cricoid leafy : leaves filiform-linear, 4 to 8 linee 

 long; uppermost passing into similar bracts and bract let-s of the somewhat paniculate in- 

 florescence : calyx deeply 5-parted ; the divisions similar to and equalled by the bractlets; 



