1344 CONTRIBUTIONS FROM THE NATIONAL HEEBAEIUM 



Shrub; leaves elliptic-acuminate, long-attenuate to the petiole, large, nearly- 

 glabrous; flowers in terminal cymes, the bracts and bractlets small; calyx lobes 

 broad, foliaceous, the posterior one larger; corolla tube campanulate, pubescent, 

 the limb with 5 short subequal lobes; stamens 2. the cells unequal. 



14. JACOBINIA Moric. PI. Nouv. Amer. 156. 1846. 

 Shrubs or herbs; leaves entire; flowers usually red or yellow, sessile in the axils 

 of bracts or short-pedicellate, solitary, cymose, spicate, or paniculate; calyx 

 5-cleft or 5-parted, the lobes narrow; corolla tube usually slender and elongate, 

 straight or incurved, the limb bilabiate, the posterior lip narrow, erect, entire or 

 shallowly bilobate, the anterior lip 3-lobate; stamens 2, the anther cells more or 

 less unequal, not appendaged at base; ovules 2 in each cell. 

 Flowers in a large dense terminal thyrse; leaves not auriculate at base of petiole. 



1. J. umbrosa. 

 Flowers not in a dense terminal thyrse or, if so, the leaves auriculate at base 

 of petiole. 



Leaves stellate-pubescent 2. J. stellata. 



Leaves glabrous or with pubescence of simple hairs. 



Calyx lobes mostly 2 to 3 mm. wide, large and herbaceous, sometimes 

 obtuse. 



Calyx lobes obtuse 3. J. purpusii. 



Calyx lobes acuminate. 



Calyx parted nearly to the base 4. J. paniculata. 



Calyx with a tube nearly as long as the lobes_.^ 5. J. albicaulis. 



Calyx lobes 1.5 mm. wide or less, small, linear or lance-subulate, never 

 obtuse. 



Leaves auriculate at base of petiole 6. J. auriculata. 



Leaves not auriculate at base. 

 Corolla glabrous. 



Leaves densely velutinous-pubescent beneath 7. J. incana. 



Leaves glabrous beneath except along the veins 8. J. spicigera. 



Corolla pilose or puberulent. 

 Calyx glandular-pubescent. 



Stems pubescent-tomentose 9. J. aschenborniana. 



Stems hirsute 10. J. heterophylla. 



Calyx without glandular pubescence. 



Bracts equaling or longer than the calyx 11. J. candicans. 



Bracts much shorter than the calyx. 



Leaves glabrate beneath 12. J. mexicana. 



Leaves subtomentose beneath 13. J. mollis. 



1. Jacobinia umbrosa (Benth.) Blake, Contr. Gray Herb. n. ser. 52: 103. 1917. 

 Justicia aurea Schlecht. Linnaea 7: 393. 1832. 

 Justicia umbrosa Benth. PI. Hartw. 79. 1841. 



Cyrtanthera catalpaefolia Nees in Curtis's Bot. Mag. pi. 4-444' 1849. 

 ICyrtanthera chrysostephana Hook. f. in Curtis's Bot. Mag. pi. 5887. 1871. 

 Jacobinia aurea Yierasl. Diag^Pl. Mex. 35. 1879. Not /. awrea Hiern, 1877-78. 

 Veracruz, Oaxaca, and Chiapas; type from Tioselo, Veracruz. Central x\merica. 

 Shrub or small tree, 1 to 4 meters high or larger, the branches puberulent or 

 glabrous; leaves petiolate, lance-oblong to broadly ovate, 10 to 45 cm. long, 

 usually acute or acuminate, abruptly decurrent at base, puberulent or nearly 

 glabrous beneath; thyrses 7 to 30 cm. long, many-flowered; corolla yellow, about 

 5 cm. long, puberulent or pilosulous. "Monte de oro," "pluma de oro" (Vera- 

 cruz, Oaxaca); "cola de ardilla" (El Salvador). 



