1212 CONTRIBUTIONS FKOM THE NATIONAL HERBARIUM. 



Hoitzia elata Hook. & Am. Bot. Beechey Voy. 441. 1841. 



Hoitsia ramosissima Mart. & Gal. Bull. Acad. Brux. 122: 273. 1845. 



Hoitzia scabra Mart. & Gal. Bull. Acad. Brux. 122; 274. 1845. 



Sonora and Chihuahua to Veracruz and Chiapas. Southern Arizona; 

 Guatemala to Colombia and Venezuela. 



Plants pubescent or glabrate, annual but often suffrutescent, slender, 1 

 meter high or less; leaves lanceolate or ovate, sharply serrate, short-pet iolate; 

 corolla bluish, about 15 mm. long. "Verbena" (Chiapas); " clarincillo 

 silvestre " ( Guatemala ) . 



Brand separates several varieties, which differ chiefly in pubescence. 



9. Loeselia amplectens (Hooli. & Am.) Benth. in DC. Prodr. 9: 320. 1845. 

 Hoitzia amplectens Hook. & Arn. Bot. Beechey Voy. 441. 1841. 

 Loeselia cordifolia Hemsl. & Rose in Hook. Icon. PI. 26: pi. 2551. 1899. 

 Tepic to Guerrero; type collected between San Bias and Tepic. 



Plants slender, puberulent or glabrate, chiefly herbaceous; leaves ovate- 

 cordate or lance-cordate, sessile, serrate, prominently veined; bracts large 

 and leaflike; corolla white or purplish, about 15 mm. long. 



10. Loeselia scariosa (Mart. & Gal.) Walp. Repert. Bot. 6: 527. 1846. 

 Hoitzia scariosa Mart. & Gal. Bull. Acad. Brux. 122: 274. 1845. 

 Loeselia greggii S. Wats. Proc. Amer. Acad. 18: 117. 1883. 

 Chihuahua and Coahuila to Puebla ; type from Puebla. 



Plants slender, pubescent, suffrutescent; leaves oblong to ovate, sessile or 

 short-petiolate, aristate-dentate, cuneate at base; corolla bluish or pink, about 

 1 cm. long. " Huachichile " (Coahuila). 



Palmer reports that in Coahuila the plant is used as a remedy for ague. 



11. Loeselia caemlea (Cav.) Don, Hist. Dichl. PI. 4: 248. 1837. 

 Hoitzia caerulea Cav. Icon. PI. 4: 45. pi. S66. 1797. 

 Loeselia rupestris Benth. in DC. Prodr. 9: 319. 1845. 

 Hoitzia floribunda Mart. & Gal. Bull. Acad. Brux. 12': 275. 1845. 

 Chihuahua to Jalisco and Oaxaca. 



Plants pubescent, annual but often suffrutescent, 45 cm. high or less ; leaves 

 linear-lanceolate to ovate, sessile, dentate ; bracts purplish-reticulate ; corolla 

 blue, 10 to 12 mm. long. " Banderilla," "jarritos," " guachichil" (Brand). 



12. Loeselia ciliata L. Sp. PI. 628. 1753. 



Hoitzia aristata H. B. K. Nov. Gen. & Sp. 3: 128. 1819. 



Hoitzia loeselia Spreng. Syst. Veg. 1: 626. 1825. 



Loeselia involucrata Don, Hist. Dichl. PI. 4: 248. 1837. 



Hoitzia lupulina Hook. & Arn. Bot. Beechey Voy. 441. 1841. 



Baja California to Chihuahua, Veracruz, and Guerrero; type from Veracruz. 

 Central America. 



Plants pubescent or glabrate, slender, annual but sometimes suffrutescent ; 

 leaves mostly ovate or broadly ovate, petiolate, dentate; bracts large and 

 leaflike, cordate, aristate-dentate; corolla blue or white, about 1 cm. long. 

 "Lenteja," " lentejilla " (El Salvador). 



Loeselia involucrata is maintained by Brand as distinct from L. ciliata, the 

 two with L. amplectens forming a " species collectiva." He states that in 

 L. ciliata the outer bracts are cordate but not clasping, while in L. involucrata 

 they are deeply cordate-clasping. There does not appear to be any essential 

 difference between the two forms. 



