Dlcliptera. ACANTHACEiE. §31 



^'lanSfo^TT' l''^^' ^- '• S'^^^^^^^-P^terulent. not at all hirsute: leaves oblong- 

 t". nil ■ f «»l>V"rd=^te. rhucronate-acuminate (half or two-thirds inch long), ligl.tly 



trorrTol :,"^\7^= bractlets minute and subulate: calyx 5-partod: tube of purple 



' TPvi« ^' f R '^'^'•r-^ly oblong lobes : seeds muriculate-scabrous.-S. borders of 



Texas, near Rniggold Barracks on the Rio Grande, Schott. 



15. piCLlPTERA, Juss. (z/tx^tV, two-valved, and mBQov, wing : applies 

 to the involucre of the typical species, but was explained to relate to the bipar- 

 tition and separation of the two parts of each valve of the capsule after dehiscence.) 

 — Chiefly herbs, dispersed over the warmer regions of the world. Fl. summer. 

 ■Corolla often seemingly resupinate as relates to primary axis, on account of the 

 cymose inflorescence or the evolution of more than one flower in the involucre. 

 I^eaves petiolate. In the disruption of the valves of the capsule, the sides are 

 usually carried away with the placentae, leaving only a stalk-like base. 



§ 1. EuDiCLi'pTE'.A. Bractlets of the flat involucre a single pair and broad, 

 opposite : internal bractlets small and tliin like the sepals : anther-cells oval, dis- 

 joined, one nearly over the other. 



D. resupinata, Juss. A span to a foot or two higli from an annual or perennial root 

 nearly glabrous: stem G-angled : leaves from ovate to lanceolate or oblong: involucres on 

 naked simple or commonly trifid peduncles, l-3flowered, rotund- or deltoid-subcordate 

 rarely round-obovate, very flat, a tliird to half inch long and nearly as wide: lobes of tiie 



• purple corolla obovate. — Ann. Mus. ix. 268 ; Nees in DC. Prodr. xi. 474 ; Torr. Bot. Mex. 



. Bound. 124. JusUcia sexangulans, Cav. Ic. ili. 2, t. 203. .7. resupinata, Vahl, Enum. i. 114. 

 Dlcliplera ihhspwides, Nees, 1. c. 1 S. Arizona (and California ? Coulter), Thurber, Schott. 



■ Wrifjht,&c. (Mex.) 



D. brachiata, Spreng. A foot or two high, from almost glabrous to pilose-pubescent : 

 stem G-angh^d, ratlier slender, witJi numerous spreading brandies: leaves oblong-ovate, 

 mostly -acuminate, membranaceous (2 to 4 inches long), slender-petioled : involucres clus- 

 tered in tiio axils and more or less paniculate, short-pedunclcd and subsessile, somewhat 

 convex, or at lengtli ventricose, its valves narrowed at base, 3 to 5 lines long, from broadly 

 obovate with rounded summit to spatulate-oblong, often unequal, frequently mucronate or 

 mucronulate: lobes of the purple or flesh-colored corolla elongated-oblong, half inch or 

 less long, about the length of the slender curved tube. — Syst. i. 80 ; Nees, 1. c. ; Chapm. 

 n. 305. D. resupinata, Nutt. in Trans. Am. Phil. Soc. n. ser. v. 18.3, not Vahl. B. glaudulosa, 

 Scheele in Limi xxi. 765, a villous-pubescent form. — Shady and moist ground, N. Caro- 

 lina to Florida and Texas. 



Var. attenuata, a form with the involucral valves narrower, spatulate or oblong, and 

 cuspidate-acuminate; and attenuate-acuminate leaves on long (sometimes 2 inch) petioles. • 

 — E. Texas, Wriyht. Also Arkansas, Nuttull: therefore his D. resupinata, in part; but not 

 according to his character " bracteis bivalvibus subcordatis." 



§ 2. Dactylostegium. Bractlets 2 and narrow, and at base supplemented by 

 and sometimes partially concreted with a smaller aiid alternate pair, being the 

 outer and larger of the internal bractlets : anthers oblong-sagittate, the cells 

 usually pai-allel and equal : flowers loosely secund-spicate or paniculate : primary 

 bracts small and subulate. — Dactylostegium, Nees in Fl. Bras., Oersted. § Dac- 

 tylosteyice, Nees in DC. Prodr. 



D. assurgens, Juss. 1. c. Glabrous or puberulent : stem 1 to 3 feet high, with virgate 

 branches: leaves ovate, acuminate, or the smaller upper ones oblong and obtuse: invol- 

 ucres cliiefly sessile and rather sparse in the slander simple or paniculate spikes : principal 

 bractlets of tiie involucre linear-spatulate, 4 or 5 lines long, 1-nerved, mucronate, nearly 

 twice the lengtli of the slender-subulate interior ones : cprolla much exserted, an inch long, 

 red or crimson, arcuate ; tlie nearly entire lanceolate-oblong iips shorter than tlie upwardly 

 ampliate tube. ^ Nees in DC. 1. c. 489; Cliapm. Fl. 305. ' Jusllcia assurgens, L. (P. IJrowne, 

 Jam. 110, t. 2, fig. l.[— Eastern S. Florida. (AV. Ind., Centr. Am.) 



