486 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM. 
subpersistent ; flowers purple, the terminal one of each dichotomy subsessile, 
the lateral ones rather long-pediceled, the pedicels pubescent, the terminal one 
up to 1 mm. long, the lateral ones 3 to 4 mm. long; calyx campanulate, 5-toothed, 
4 mm. long, grayish-pubescent, usually subtended by two bractlets, the teeth 
broadly rounded-triangular, with acute sinuses; corolla 14 mm. long, pilosulous 
and minutely glandular without on the upper part of the tube and at the base 
of the lobes, the tube about 7 mm. long, rather narrow, barbellate at the inser- 
tion of the stamens within, the lobes rounded-obtuse, the inferior median one 
suborbicular, contracted at the base, about 4.5 mm. in diameter, barbate at the 
base, slightly sinuate on the margin, the lateral and inferior lobes much 
shorter, glabrous within: stamens didynamous, the longer pair about 6.5 mm. 
long, the filaments densely long-hairy, the anther cells divaricate; ovary small 
(hardly 1 mm. in diameter), globose, densely white-pubescent, the style 8.5 mm. 
long, densely barbellate at the base, sparsely long-hairy throughout. 
Drupe not seen. 
Type in the U. S. National Herbarium, no, 386818, collected at Cuesta del 
Peregrino, State of Michoacan or Guerrero, Mexico, April 15, 1899, by RB. 
Langlassé (no. 994). Another collection was made by the same collector at 
San Diego, in the same region, in flower, May 3, 1898 (Langlassé 183). 
Vitex ‘capulin differs from the other known Mexican species in its entirely 
glabrous leaflets and glandular calyx and corolla, and in the pronounced 
hairiness of the filaments and the style. The panicles, although distinctly 
broader at the base, are far less ample than those of V. pyramidata Robinson 
and V. gaumeri Greenm., 
This species is known among the natives as “capulin,” a name applied also 
to several species of the genus Prunus, 
Vitex longeracemosa Pittier, sp. nov. 
A tree; young growth and petioles and the rachis of the inflorescence more 
or less cano-pubescent. 
Leaves 5 or 6-foliolate, almost fully grown at time of flowering, the petioles 
stout, cano-pubescent or glabrescent, shallowly canaliculate, 9 to 12 em. long; 
petiolules cano-pubescent, canaliculate, 1 to 2.2 em. long; leaf blades ovate- 
elliptic to elliptic-lanceolate, more or less cuneate or acute at the base, acutely 
long-acuminate at the apex, pilosulous or glabrescent above, more or less cano- 
tomentulose beneath, the costa and primary veins impressed, the venules hardly 
conspicuous above, all very prominent and reticulate beneath; blade of the 
middle leaflet 14 to 17.5 em. long, 4 to 6.5 cm. broad, those of the lateral leaflets 
9 to 12 cm. long, 3.5 to 5.5 em. broad. 
Cymes paniculate, the rachis cano-pubescent ; panicles axillary, ample, about 
25 cm. long, or as long as the leaves, the peduncular part 3 to 10 em. long; 
flowers bluish purple, all pediceled; bracts and bractlets caducous, ovate or 
ovate-oblong, not over 2.5 mm. long, cano-hairy without, glabrous within; 
pedicels about 3 mm. long; calyx campanulate, 2.5 to 3 mm. long, puberulous- 
canescent, subbilabiate, acutely 5-toothed, 3 teeth on the inferior lip (the 
middle one broader and shorter), 2 teeth on the upper lip; corolla 12 to 14 
mm. long, bilabiate, sparsely evanescent-puberulous without, barbellate at the 
insertion of the stamens and puberulous at the base of the inferior lip within, 
the tube 5.5 to 6 mm. long, the inferior lip trilobate, the median lobe longer (6 
mim.) and broader (5 mm.) than the exterior ones (4 mm. long, 2.5 mm. 
broad), the superior lip bilobate, with short rounded lobes ; stamens 4, exserted, 
the filaments arcuate, about 5.5 mm. long, sparsely covered with rather long 
hairs, the anthers ovate; ovary subglobose, glabrous at the base, cano-hairy 
on the upper half, the style glabrous, about 7 mm. long. 
