4. Phyla cuneifolia (Torr.) Greene. Wedge-leaf frog-fruit. Fig. 655. 



Stems branching from a woody base, procumbent, often rooting at the nodes 

 to 1 m. long, sparsely appressed-strigillose with very short white hairs, fractiflex, 

 often with short erect branchlets at the nodes; leaves sessile, rigid, thick- 

 textured, often with a fascicle of smaller ones in the axils, linear-oblanceo- 

 late or cuneiform, often canescent when young, 1-5.2 cm. long 2-8 mm. wide, 

 acute or subacute, with 2 to 8 very sharp and often salient teeth above the middle 

 or rarely entire, gradually attenuate to the cuneate base, appressed-strigillose on 

 both surfaces, secondary venation indiscernible on both surfaces; inflorescence 

 shorter than or slightly surpassing the leaves; peduncles 8-50 mm. long, ob- 

 scurely appressed-strigillose; heads at first globose, later cylindric and elongating 

 to 2 cm., 8-12 mm. wide; bractlets conspicuous, obovate, 5 mm. long and 3 mm. 

 wide, abruptly long-acuminate, at least the tip soon wide-spreading and finally 

 reflexed scarious on the upper margins, densely appressed-strigillose; corolla whit- 

 ish or purplish, the tube 4-5 mm. long, limb 2-4.5 mm. wide. Lippia cuneifolia 

 (Torr.) Steud. 



Plains and low prairies, wet banks of irrigation ponds and ditches, playa lakes 

 and stream beds, in Okla. (Cimarron Co.). mostly in cen. and w. Tex., N.M. (Un- 

 ion, McKinley, Roosevelt, Quay and San Miguel cos.) and Ariz. (Apache to Coco- 

 nino, Yavapai and Cochise cos.) May-Sept.; also S.D., Neb. and N.M. to Ariz., s. 

 Calif, and n. Mex. 



5. Phyla nodiflora (L.) Greene. Common frog-fruit, cape-weed, turkey- 



tangle, MAT-GRASS, HIERBA DE LA VIRGEN MaRIA. Fig. 656. 



Stems prostrate, to 9 dm. long, mostly rooting at the nodes; branches procum- 

 bent or ascending, glabrate or puberulent to appressed-strigillose; petioles obsolete 

 or 2-8 mm. long and cuneate-winged; leaf blades thick-textured, spatulate to ob- 

 lanceolate or obovate, sometimes elliptic or cuneiform, 1-7.2 cm. long, 6-25 mm. 

 wide, rounded or obtuse to subacute at apex, cuneate into the petiole, rather reg- 

 ularly sharply serrate above the middle with numerous appressed antrorse acute 

 or acuminate teeth, glabrous or strigillose-puberulent on both surfaces, secondary 

 venation practically indiscernible on both surfaces; peduncles usually much longer 

 than the leaves, to 11.5 cm. long, appressed-puberulent or strigose with antrorse 

 canescent hairs or glabrous; heads at first globose, cylindric in age and elongate 

 to 25 mm., 6-9 mm. thick; bractlets closely imbricate, obovate or subrhomboid- 

 cuneate, subequaling the corolla tube, often rather broadly membranous-margined 

 toward the apex, mucronate-acuminate or muticous, glabrous or finely ciliate; 

 corolla rose-purple or white, 2-2.5 mm. long, slightly surpassing the bractlets, 

 slightly strigillose outside, limb exiguous. Lippia nodiflora (L.) Michx. 



Wet or moist soil, fields, clearings, hillsides, ditches, thickets and beaches, along 

 the Tex. coast from Chambers to Cameron cos., inland to Kendall, Tom Green 

 and Childress cos., May-Oct.; almost cosmopolitan in subtrop. and trop, regions of 

 the Old World and New World; Pa. to Fla., Ky., Ark., La., Okla. and Calif. 



Var. longifolia Moldenke differs in having much more uniformly elongate 

 leaves, the blades being oblanceolate-cuneate, to 55 mm. long and 4-10 mm. wide, 

 and sharply spreading-dentate toward the apex; open sandy wettish fiats near the 

 seacoast, Cameron Co., Tex.; also along the coasts of Mex., C.A. and w. S.A. 



Var. reptans (H.B.K.) Moldenke differs in usually being more densely strigose 

 throughout and having the leaves thinner in texture, often rhomboid-elliptic, with 

 the teeth usually more spreading and the larger venation firmer and more or less 

 prominent beneath; low moist ground, shaded places, clearings, ditches, lawns and 

 roadsides, in Tex. from Presidio to Cameron and Chambers cos., n. to Dallas and 

 Wichita cos., Feb.-Sept.; occurring sporadically almost throughout the range of 

 the species. 



1405 



