578 CONTKIBUTIOlSrS FEOM THE NATIONAL HEEBAEIUM. 



4. ANTIRRHINUM L. 



Slender vine with thin triangular-hastate glabrous leaves and light blue solitary 

 axillary flowers; sepals partially united, narrowly lanceolate, persistent and slightly 

 accrescent, not carinate at the base in fruit; corolla 2-lipped, the tube more or less 

 saccate at the base, the limb short; stamens 4, included ; capsule subglobose, 5 to 8 mm. 

 in diameter, opening by chinks near the persistent base of the style; seeds numerous, 

 corky-thickened on the angles. 



1. AntiiThinum antirrhiniflorum (Willd.) Hitchc. Rep. Mo. Bot. Gard. 4: 113. 

 1893. 



Maurandia antirrhinifiora Willd. Hort. Berol. pi. 83. 1816. 



Antiirhinum muurandioides A. Gray, Proc. Amer. Acad. 6: 376. 1868. 



Type locality: Mexico. 



Range: Western Texas and southern Arizona to Mexico. 



New Mexico: Clemow; Lower Plaza; Silver City; Kingston; Grand Canyon of the 

 Gila; Guadalupe Canyon; Dog Spring; Organ Mountains. Dry hills and sandy fields, 

 in the Lower and Upper Sonoran zones. 



5. MAURANDIA Ortega. 



Very similar in most respects to the preceding, but a larger coarser plant, the leaves 

 thicker, somewhat narrower; flowers larger, light blue, the corolla scarcely gibbous at 

 the base; calyx lobes accrescent and persistent, strongly carinate outside at the base, 

 closely investing the capsule; this o^'oid, surmounted by the hardened and flattened 

 base of the style, opening by 2 long slits at the top; seeds numerous, dark brown, 

 winged. 



1. Maurandia wislizeni A. Gray in Torr. U. S. & Mex. Bound. Bot. 111. 1859. 



Tyte LOCALITY': Along the Rio Grande below Dona Ana, New Mexico. Type col- 

 lected by Wislizenus in 1846. 



Range: Western Texas and southern New Mexico to Mexico. 



New Mexico: San Marcial; Deming; Mesilla Valley. Sandy mesas and river 

 valleys, in the Lower Sonoran Zone. 



6. SCROPHULARIA L. Figwort. 



Large coarse branched leafy green perennial herbs, mostly over 1 meter higli, with 

 opposite or whorled leaves and terminal panicles; leaves mostly large, flat, variously 

 toothed; calyx lobes 5, relatively broad; corolla dull reddish or greenish, the tube 

 open-campanulate, 2-lipped, the lips short; anther-bearing stamens 4, the upper 

 filament reduced to a scale; capsules ovoid, the seeds numerous, wingless, wrinkled. 



KEY' TO THE SPECIES. 



Corolla 15 to 20 mm. limg, reddish 1. S. coccinea. 



Corolla 12 mm. long or mostly less, dull greenish. 



Branches of the inflorescence ascending, forming a dense panicle; 



leaves finely and evenly toothed 2. S. montana. 



Branches of the inflorescence spreading, forming a loose few- 

 branched panicle; leaves coarsely and unevenly laciniate- 

 serrate. 

 Plants glabrous tliroughout or nearly so; petioles long, 



usually half as long as the blades, these light green. . 3. S. lacvis. 

 Plants densely and finely puberulent on the stems, variously 

 pubescent elsewhere; petioles less than one-third as 

 long as the blades, these dull dark green 4. S. jmrvijlora. 



