326 ACANTHACE^. Kuellla. 



form : capsule puberulent. (Torr. in lierb., unpublished.) — Dry woods, in W. Louisiana, 

 J. Hale. Arkansas, BUje/ow, Mrs. Harris. Corolla about an incli and a half long. 

 * # « * Flowers subsessile and coninionlv glomerate in the axils, when short-peduncled with 

 fohaceoiis primary bracts or bractlets: stamens of almost equal length : capsule at most 8-seedcd: 

 sliort hispid hairs' of the seed spreading when wet, containing a fixed spiral iibre or band, but no 

 uncoilmg spiricles. 

 •J— Suffrutescent : leaves rigid: corolla white: capsule oblong, with hardly any stipe-like base, 

 R. Parryi. A span high, mucii branched from the lignescont base : leaves obovate-oblong, . 

 or the upper oblong-lanceolate, tapering into a distinct petiole, hispid-ciliate, otherwise 

 glabrate, an inch or less long (the older have cystolitlis) : flowers mostly solitary in tlie 

 axils, on a peduncle shorter than the petiole or subsessile : bractlcts oblong, surpassing 

 the slender-subulate often unequal calyx-lobes : tube of the corolla (inch long) slender, 

 dilated at the summit into a small narrowly funnelform throat, which is shorter than the 

 , lohes. — Dipleracaiitlius stiffnilicoaus, Torr. Bot. Mex. Bound. 122 (but there is a R.suffni- 

 //coso, lloxb.).— Sotith-western borders of Texas: at Presidio del Norte, P«rr^, in flower. 

 Valley of the Pecos, in fruit, Wr'njhl. 

 ' ^_, ^_ Herbaceous: stems mostly simple: corolla usually blue wr violet, except in R. tubljlora: 

 capsule more broadly clavate an'd obconi pressed. 

 ++ Calvx-lobes liiiform-attenuate, longer than the capsule: cleistogamous flowers seldom seen. 

 il. noctiflora. Puberulent, or very young parts soft-villous, a foot or less high : leaves 

 narrowly oblong (1 to inches long), mostly with tapering base, but sessile : bracts and 

 ' bractlets of the solitary or few flowers linear-lanceolate : calyx generally soft-puberulent } 

 its lobes somewhat linear-filiform and hardly widened at base {sometimes 18 lines long), 

 ■ barely half the length of the elongated (fully 2 inch) tube of the white corolla, the throat 

 of which is funnelform. — /i. tuhijlora, LeContc in Ann. Lye. N. Y. i. 142, not HBK. 

 Dipleracanlhus )wcliJJorns, Nees in DC. 1. c," partly ; Chapm. Fl. 304. — Low pine-barrens. 

 Lower Georgia, LeCWe. W: morida, Rugel, Chajman, &c. S. Mississippi, %a//s. Nighty 

 blooming? ■ . 

 R. ciliosa, Pursh. Usually hirsute with long spreading hairs, especially, the (about ijich 

 long) fililonn attenuate calyx-lobes: leaves oblong or the lower oval (an inch or two long), 



• almost sessile : tube of the blue corolla cpmmonly twice the length of the calyx and of the 

 limb with the obconical throat, the whole not rarely 2 inches long. — Fl. i. 420 ; Gray, Man. 

 ed. 5, 3;}9. Dipleracanlhus ciliosns, Nees in Linn. xvi. 294, & Prodr. 1. c, with var. hi/bridits, 

 mainly! — Dry ground, Michigan and Illinois to Florida and Lo:uisiana : in various forms. 



Var. longiflora. Pubescence sometimes cinereous, with or without long hirsute 

 hairs: stems sometimes flowering when 2 or 3 inches high, sometimes tall and slender: 

 leaves narrowly oblong or the lower obovate-spatulate, usually small: slender tube of 

 £orolla 1 or 2 inches long. — /?, fuunilix, Nutt. in Trans., A.m. Phil. Soe. n. ser. v. 182. ' .//(s- 

 Urin with char. & no name, Torr. in Ann. Lye. N. Y. ii. 235. DqUeracaulfms Drmimmda, 

 Torr & Gray in PI. Lindh. i. 50. D. noctiJlorus/S^eQs, in DC 1. c, as to Texan pi. and var. 

 hi,m,hs, also D nhosus, var. Iiyhridus, in part. — Louisiana, Arkansas, and Texas. 



Var hybrida Either hirsute or cinereous-pubescent, sometmies almost velvety- 



• pubescent: leaves from, ovate to oblong, mostly with distinct petioles : tube of the corolla 

 shorter than the throat and limb, sometimes shorter than the linear-setaceous calyx-lobes, 



-.which- often want the hir.sute hairs. - fi. ^/W^/a, Pursh, Fl. ii.420; LeConte^ in Ann. 



' Lye 1 c. R. sfrcnfxs, L. as to Dill. Elth. t. 240, at lea.st in part. R. hirsula, Ell. Sk. u. lOJ. 

 D;,>levacnnlhus afio.vis, var. fiyhridus, m. part, & /J. Mlichilliamis, Nees, 1. c. D. strepens, var. 



. Dilfnili Nees, 1. c S. Carolina to Florida. Verges to the two followmg species. 



Var ambigua. Sparingly hirsute-pubescent pr glabrate : leaves ovate-oblong, usu- 

 ally short-petioled, larger; tube of corolla little exceeding the hardly hirsute calyx.— 

 Dipterocanms alwms, var. parrijforus, Nees, I. c. - Virginia and Kentucky to Alabama. As 

 if a hybrid "between R. ciUosa !im\ R. sirepens, with aspect, of the latter, but the calyx of 



. the former.- ,. > 'j "..■ ^ ,.v ' ' 



R Drummondiana. Cinereous-puberulent, tall ; leaves ovate, 3 to 6 inches long, peti- 

 oled- filiform-setaceous and canescent calyx-lobes (cpmmonly an inch or.more long) more 

 or less shorter than the tube of the (inch and a half long) corolla.-^ Dipl^raccthus Drnm- 



. wondiam.'!, Nees in DC. I. c. D. Undheinkria>my Sfiheeleifl: Linn. xxi. i764, 1848. — Texas, 



- Drummo)id\-Lmdhebncr.: .,- i.. ;.;; : .; '.).'<.'; •:■/!; i.i 'id:- v.'-,/;;':-; ..I; '. ; iW^. 



