Blake — New Trees and Shrubs from Yucatan. 45 



at base, acute at apex, the shorter stamens 2.7 mm. long (filaments 1 mm., 

 anthers 1.7 mm.) ; pistillate flowers 1 or 2, axillary on the young branchlets, 

 erect on glabrous pedicels 6 to 8 mm. long; calyx tube turbinate, 1.7 mm. 

 long, glabrous outside, appressed-pubescent within, the 4 lobes ovate, 

 acute or obtuse, spreading, at apex ciliate, at base within pilosulous, other- 

 wise glabrous; bud subulate, very acute; corolla urceolate, glabrous, maroon 

 color, the tube 4 mm. long, the 4 lanceolate acuminate lobes about 6.8 mm. 

 long; pistil 4 mm. long; ovary 4-celled, with a pilose ring at base, the cells 

 1-ovuled; style 1 mm. long; stigma bifid, excavated. 



Type in the herbarium of the Field Columbian Museum, No. 446,760, col- 

 lected in the forests of Suitun, Yucatan, May, 1916, by G. F. Gaumer & 

 Sons (No. 23,307). The pistillate plant (No. 23,308) was collected with 

 the type. 



A member of the Section Danzleria, not closely related to any described 

 species. 



Citharexylum trinerve Blake, sp. nov. 



Shrub 1.5 meters high, the stem minutely hispidulous toward the apex, 

 glabrate; leaves opposite, on ciliolate petioles 5 to 12 mm. long, the blades 

 oval or elliptic, 3.2 to 5.2 cm. long, 1.7 to 3.2 cm. wide, obtuse or emarginu- 

 late, not mucronate, at base short-cuneate, entire, chartaceous-coriaceous, 

 above glabrous, prominulous-reticulate, beneath equally green, strongly 

 3-nerved slightly above the base, prominulous-reticulate, barbellate in the 

 axils of the two lateral veins, otherwise glabrous; spikes terminal, solitary 

 or in threes, usually simple, densely flowered, about 2.5 cm. long, about 1.6 

 cm. wide, the peduncle densely puberulous, 8 to 12 mm. long; bracts tri- 

 angular, acute, 1.2 mm. long; flowers subsessile; calyx subtubular, 4 mm. 

 long, villous-tomentose at apex in the sinus, otherwise subglabrous, 5- 

 sulcate, with 5 short obtusish deltoid teeth; petals united for f their length, 

 outside essentially glabrous, the tube 4 mm. long, short-pilose within above 

 the base, the lobes 5, oblong, 5 to 5.5 mm. long, obtuse, inside densely bar- 

 bate- villous ; perfect stamens 4, reaching the apex of the tube, the fifth 

 sterile; ovary glabrous. 



Type in the herbarium of the Field Columbian Museum, No. 460,289, 

 collected at Xnocac, Yucatan, December, 1916, by G. F. Gaumer & Sons 

 (No. 23,502). 



This species is very distinct in its small roundish strongly 3-nerved leaves. 



Randia millspaughiana Blake, sp. nov. 



Glabrous shrub 6 meters high, 1 dm. thick, the branches armed with 

 stout spines 4 to 9 mm. long; leaves crowded at tips of branchlets, opposite; 

 petioles 1 to 1.5 mm. long, glabrous; blades oval, 1.5 to 2.7 cm. long, 0.9 to 

 1.7 cm. wide, short-pointed at base and apex, mucronulate, glabrous or 

 sparsely puberulous beneath along the costa, above deep green and some- 

 what shining, scarcely paler beneath, with 5 to 7 pairs of nerves; flowers 

 solitary, sessile; calyx 5 to 6 mm. long, glabrous outside, the campanulate 

 tube 4 mm. long (measured to apex of inner membrane), with a pilose ring 



