260 FIELD COLUMBIAN MUSEUM BOTANY, VOL. II. 



Field Mus.). The affinity of C. cinaloanum is in all probability 

 with the obscure C. scabrum Moc. & Sesse, and it may eventually 

 prove to be conspecific. The leaf-margins on an individual 

 plant often vary from entire to conspicuously dentate in the 

 apical portion; and the inflorescence, here as in several other 

 species of the genus, may be either simple or compound. 



Citharexylum Rosei Greenman, sp. nov. 



Stem and branches covered with a grayish or reddish brown 

 cortex, terete or subtetragonal ; ultimate branchlets 4-angled, 

 cinereous-hirsute: leaves opposite, lanceolate or oblanceolate, 



1 to 3 cm. long, i cm. or less broad, obtuse to rounded at the 

 apex, entire, narrowed below to a subpetiolate base, hirtellous- 

 pubescent on the upper surface, cinereous-tomentulose beneath: 

 inflorescence terminating the branchlets in few-flowered short 

 racemes; pedicels 3 to 4.5 mm. long: flowers not seen: calyx 

 persistent and in the fruiting stage 2 to 2.5 mm. high, shallow, 

 somewhat saucer-shaped, truncate, pubescent: mature fruit 

 oblong, 7 to 8 mm. long in the dried state; pyrenae elliptic, 6 to 

 7 mm. long, concavo-convex, strongly corrugated on the outer 

 or convex surface. MEXICO. State of Queretaro: between 

 Higuerillas and San Pablo near the latter station, 24 August, 

 1905, /. TV. Rose, Jos. H. Painter & /. S. Rose, no. 9827 (hb. 

 U. S. Nat. Mus., and hb. Field Mus.). This species resembles 

 C. Altamiranum to which it is closely related, but from which 

 it differs amply in having smaller leaves of different outline, a 

 more dense tomentum, and in its shorter, shallower and trun- 

 cate calyx, and corrugated pyrenae. 



Vitex Gaumeri Greenman, sp. nov. 



Tree, 10 to 15 m. in height: branches covered with a grayish 

 bark; ultimate branchlets tawny-pubescent: leaves opposite, 

 petiolate, palmately compound; petioles 3 to 9.5 cm. long, vel- 

 vety pubescent; leaflets 5 to 7, petiolulate, ovate to elliptic- 

 oblong, rarely tending to become obovate, 1.5 to n cm. long, 

 0.5 to 5. cm. broad, usually short-acuminate and acute or occa- 

 sionally rounded at the apex, entire, obtuse to subcordate at 

 the base, dark green and pubescent above, glabrate in age, pale 

 and densely tomentulose beneath; midrib and lateral veins 

 prominent on the under surface, but the anastomosing of the 

 ultimate veins not conspicuously reticulated; petiolules 0.5 to 

 2.7 cm. in length, velvety pubescent: the pedunculate panicu- 

 late cymes axillary, clustered at the ends of the branches, 2 dm. 

 or less in length: calyx small, 2.5 mm. long, subbilabiate, rather 

 acutely 5-toothed, externally pubescent: corolla irregular, 

 bilabiate, about 9 mm. long; tube erect, 5 mm. high, narrowly 

 funnel-form; the two posterior corolla-lobes small, subrotund, 



2 mm. long and broad, reflexed; the lower lip or three anterior 

 lobes of the corolla spreading, 5 to 6 mm. long, the median 

 lobe slightly pulverulent on the upper surface near its base: 

 stamens 4, didynamous, exserted; filaments narrow, slightly 



