GG NORTH AMERICAN FLORA [Volume 25 



25. Erythroxylon tabascense Britton, sp. now 



? Erythro nylon ellipticum Ramirez ; Villada, Naturaleza 3 : Si, pi. 4. 1898. Not E. ellipticum R. 

 " Br. 1863. 



Twigs brown, nearly terete. Leaves chartaceous, oblong-elliptic, rather abruptly 

 short-acuminate at the apex, obtuse or acutish at the base with the blade slightly decurrent 

 on the petiole, shining and with veins inconspicuous above, dull, faintly areolate and 

 coarsely reticulate-veined beneath, 8-14 cm. long, 4-6 cm. wide, the petioles stout, 6-9 mm. 

 long, the striate stipules lanceolate to ovate-lanceolate, about as long as the petioles ; fas- 

 cicles 5-10-flowered ; bracts ovate, 1-2 mm. long, acute ; pedicels 2-5 mm. long; calyx cleft 

 to below the middle, its lobes ovate, short-acuminate, 1.5 mm. long; petals oblong, obtuse, 

 1-3.5 mm. long, the ligule-lobes ovate, acute, erose, one fourth as long as the blade; 

 stamen-tube denticulate ; ovary globose. 



Type collected at Sancti Sebastian, Tabasco, Mexico, April 6, 1890, J. N. Rovirosa 772. Vera 

 Cruz? 



26. Erythroxylon macrophyllum Cav. Diss. 401. 1789. 



A shrub or small tree, the young twigs compressed, becoming terete. Leaves oblong 

 or obovate-oblong, firm in texture, 15-25 cm. long, 5-10 cm. wide, acute or acuminate at 

 the apex, acute at the base, somewhat shining above, dull beneath, rather distinctly reticu- 

 late-veined, the petioles 8-12 mm. long, the stipules lanceolate, striate, as long as the peti- 

 oles or longer ; bracts similar to the stipules but shorter, ovate to lanceolate-aristate ; fas- 

 cicles 3-10-flowered ; pedicels 3-9 mm. long ; calyx deeply cleft, the lpbes ovate to ovate- 

 lanceolate, short-acuminate, flabellate-veined, 6 mm. long in fruit; petals oblong, about 4 

 mm . long, the ligule-lobes erose-denticulate ; stamen-tube 10-crenulate ; drupes oblong, about 

 8 mm. long. 



Type locality: Cayenne, French Guiana. 



Distribution: Panama? Colombia to Guiana and northern Brazil. 



Illustrations : Cav. Inc. cit.pl. 227 ; Mart. Fl. Bras. 12' : pi. 32,/. 1. 



27. Erythroxylon lucidum H.B.K. Nov. Gen. & Sp. 5 : 179. 1822. 

 A small tree, the twigs slender, gray. Leaves oblong-lanceolate to broadly oblance- 

 olate, shining above, pale and dull beneath, rather thin in texture, acute or acuminate at 

 both ends, rather strongly pinnately veined, very inconspicuously reticulated, 8-15 cm. 

 long, 2.5-5 cm. wide, the petioles 5-8 mm. long, the strongly striate stipules obliquely 

 triangular-lanceolate, 10-12 mm. long, 3 mm. wide at the base; flowers in fascicles of 2-6, 

 on pedicels as long as the petioles or a little longer, the bracts striate, ovate to lanceolate, 

 2-3 mm. long; calyx deeply cleft, the lobes very broadly ovate, short-acuminate, 4 mm. 

 long; petals oblong, concave, obtusish, 3-3.5 mm. long, short-clawed, the oblong ligule- 

 lobes about one third as long. 



Type locality : Between La Mesa and Honda, New Granada. 

 Distribution: Colombia: Costa Rica; Mexico. 



28. Erythroxylon popayanense H.B.K. Nov. Gen. 

 &Sp. 5: 179. 1822. 

 Leaves elliptic, acute, submucronate, membranous, reticulate-veined, 3.5-4.5 cm. long, 

 acute or cuneate at the base, the petioles 3^1 mm. long; stipules ovate, bifid, shorter 

 than the petioles, their lobes subulate ; pedicels 4 mm. long; bracts ovate-lanceolate, striate, 

 subciliate ; calyx-lobes ovate, acute ; petals oblong, obtuse, concave, 2-3 times as long as 

 the calyx, the ligule-lobes undulate-plicate. 

 Type locality: Near Popayan, Colombia. 

 Distribution: Panama? Colombia. 



Excluded species 

 Erythroxylon subcordalum Bert.; DC. Prodr. 1: 575. 1824. = Coccoloba subcordata 

 (Bert.) Lindau. 



