342 The Botanical Gazette. [December, 



above, paler beneath, including petiole 4-5 inches long, I-l| 

 inches wide, the uppermost smaller, entire : peduncles in 

 pairs, axillary, smooth, 5-10 lines long; heads 5-6 lines 

 in diameter ; calyx tomentous, obtusely four-toothed ; corolla 

 1 1 times as long as the calyx, hairy within ; stamens and 

 clavate entire stigma included. — A "willow-like bush/ 1 head 

 of Mazatlan River, January, 1889 (n. 1282). Distinguished 

 from the South American B. globosa Lam., B. polycephala 

 HBK. and others by its thinner leaves and the absence of. the 

 dense ferruginous tomentum characteristic of those species ; 

 from B. connata Ruiz et Pav. by its narrow petioles, which 



i 



are merely connected by a line and are not truly connate. 

 Citharexylum Ciualoaiium. — A slender shrub, 4 feet high: 



branchlets striate, roundish or slightly 4-angled, canescent- 

 tomentulous: leaves ovate or oblong, usually acuminate, rarely 

 obtuse at the apex, acute at the base, entire or with a few 

 shallow teeth toward the apex, pale, nearly glabrous but 

 slightly roughish above, with short canescent tomentum be- 

 neath, \\-2\ inches long, half as broad ; petioles 2-4 lines 

 long : spikes single, terminal, slender, nodding ; bractlets 

 minute, subulate ; flowers subsessile ; calyx campanulate, I 

 line long, striate, pubescent, with 5 very short acuminate 

 slightly spreading but not reflexed equal or sub- equal teeth ; 

 corolla white, pubescent within and without, exceeding the 

 calyx by half ; segments erect ; fertile stamens four ; rudi- 

 ment minute ; style glabrous ; fruit dark, 2 lines in dia- 

 meter. — Mazatlan, January, 1889 (n J??5 )- Very nearly 



related to C. Bcrlandicri Robinson, but differing in its larger, 

 usually more acuminate leaves, its campanulate rather than 

 turbinate calyx with acute instead of blunt lobes, in the erect 

 lobes of the corolla, and the glabrous style ; the corolla-lobes 

 in C. Berlandieri being larger and more spreading and the 

 upper part of the style puberulent. 



Gray Herbarium, Cambridge, Mass. 



