244 



ACANTHACEAE. 



VOL. IK. 



inflorescence mostly cymose or spicate, the involucres subtending I flower or several. Calyx 

 4-5-cleft, the lobes linear or subulate. Corolla-tube slender, slightly enlarged above, the 

 limb conspicuously 2-lipped ; upper lip erect, concave, interior in the bud, entire or 2-3-toothed ; 

 lower lip spreading, entire or 3-toothed. Stamens 2; anther-sacs parallel, sometimes unequal, 

 separated by a narrow connective. Style filiform; ovules 2 in each cavity of the ovary. 

 Capsule flattened, ovate or suborbicular, sessile or stipitate, 2-4-seeded. Placentae separating 

 elastically from the walls of the capsule. Seeds compressed, nearly orbicular. 



About 60 species, natives of warm and tropical regions. Besides the following, 4 others occur 

 in the southern and southwestern United States. Type species : Justicia chinensis L. 



i. Diapedium brachiatum (Pursh) 

 Kuntze. Diapedium. Fig. 3896. 



Justicia brachiata Pursh, Fl. Am. Sept. 13. 1814. 

 Dicliptera brachiata Sprang. Syst. i : 86. 1825. 

 D. brachiatum Kuntze, Rev. Gen. PI. 485. 1891. 



Annual (?), glabrate, or pubescent; stem 

 slender, 6-grooved, erect, much branched, i-2 

 high. Leaves ovate, membranous, long-petioled, 

 acuminate or acute at the apex, narrowed or 

 rounded at the base, 3'-6' long, i'-3' wide; 

 inflorescence paniculate, the involucres 1-4- 

 flowered, each of 2 oblong or obovate, obtuse 

 or mucronate, opposite bracts; corolla 8"-i2" 

 long, pink or purple, the lips about as long as 

 the slender tube; upper lip 2-3-toothed, the 

 lower entire ; capsule oblong, 2"-$" high, a 

 little longer than the involucre, the valves 

 slightly divergent in dehiscence, the placentae 

 remaining attached to tneir summits. 



In moist thickets, North Carolina to Florida, 

 Missouri, Kansas and Texas. July-Oct. 



Family 34. PHRYMACEAE Schauer 



in DC. Prodr. n: 520. 1847. 

 LOPSEED FAMILY. 



An erect perennial herb with divaricate branches, opposite membranous simple 

 leaves, and small irregular purplish flowers, distant in slender elongated spikes. 

 Calyx cylindric, 2-lipped; upper lip 2-cleft, the teeth setaceous; lower lip much 

 shorter, 3-toothed, the teeth subulate. Corolla-tube cylindric, the limb 2-lipped ; 

 upper lip erect, concave, emarginate ; lower lip larger, spreading, convex, 3-lobed, 

 the lobes obtuse. Stamens 4, didynamous, included. Ovary oblique, i-celled ; 

 ovule i, orthotropous, ascending; style slender; stigma 2-lobed. Calyx reflexed 

 in fruit, enclosing the dry achene, becoming prominently ribbed, closed and its 

 teeth hooked at the ends. Cotyledons convolute ; radicle superior. 



Consists of the following monotypic genus of eastern 

 North America, eastern and central Asia. [Name un- 

 explained.] 



i. PHRYMA L. Sp. PL 601. 1753. 



i. Phryma Leptostachya L. Lopseed. 



Fig- 3897- 



Phyrma Leptostachya L. Sp. PI. 601. 1753. 



Puberulent; stem i4-3 high, somewhat 4-sided, 

 sometimes constricted above the nodes, branched 

 above, the branches slender, elongated, divergent. 

 Leaves ovate, acute or acuminate at the apex, obtuse 

 of narrowed at the base, very thin, coarsely dentate, 

 2'-6' long, the lower petioled, the upper often nearly 

 sessile ; spikes very narrow, 3'-6' long ; flowers about 

 3" long, mostly opposite, distant, borne on very short 

 minutely 2-bracteolate pedicels, at first erect, soon 

 spreading, the calyx, after flowering, abruptly re- 

 flexed against the axis of the spike. 



In woods and thickets, New Brunswick to Manitoba, 

 Florida and Kansas. Bermuda. Eastern Asia. June-Aug. 



