GREENMAN. — PHANEROGAMS. 481 



8 mm. in diameter, glabrous: seeds oblong, 4 mm. long, smooth, carun- 

 culate. — Collected by C. G. Pringle on the hills of Las Sedas, Oaxaca, 

 altitude 1850 m., 22 July, 1897, no. 6698. 



A species belonging apparently to the section Poinsettia and having its 

 affinity with E. restiacea, Beiith., from which it is distinguished by the 

 larger broader leaves, the broad lobes of the involucre, and by the pres- 

 ence of five glands. 



Buxus pubescens. Shrub or small tree 4.5 to 8 m. high : stems 

 and branches covered with a grayish bark ; the branchlets and younger 

 shoots provided with a soft spreading pubescence : leaves opposite or 

 occasionally subalternate, sessile or nearly so, rhombic-ovate to oblong- 

 ovate, 2 to 5 cm. long, 1.5 to nearly 3 cm. broad, 3-nerved, obtuse or 

 acutish, mucronate, cuneate at the base, entire, ciliate, soft-pubescent 

 beneath, more sparingly pubescent and glabrate above showing the reticu- 

 late venation on the upper surface: inflorescence of axillary short-pedun- 

 culate much contracted subracemose pubescent floral clusters : staminate 

 flowers pedicellate ; pedicels 3 mm. long, about twice exceeding the 

 ovate acute bracts : calyx deeply 4-parted ; divisions ovate, acute, 2 mm. 

 long, the inner divisions slightly broader than the outer ones: the rudi- 

 mentary pistil somewhat quaterfoil or X-shaped : fertile flowers about 

 5 mm. long, single, sessile, terminating the inflorescence; ovary glabrous : 

 fruit not seen. — Collected on Maria Madi'e Island by E. AV". Nelson, 3- 

 25 May, 1897, no. 4221, 



A species apparently endemic in the Tres Marias Islands, and most 

 nearly related to the West Indian B. pidchella, Baill. 



Metastelma macropoda. Stems twining, slender, terete, above 

 as well as the branches decussately pubescent in two lines : leaves petio- 

 late, elliptic-oblong to elliptic-lanceolate, 1.5 to 2.5 cm, long, 4 to 7 mm. 

 broad, mucronate or simply acute at the apex, narrowed below to a 

 rounded or obtusish base, glabrous on either surface, or slightly puberu- 

 lent on the midrib above, margins ciliolate, usually revolute ; petioles 2 

 to 4 mm. long, puberulent above, glabrous beneath: peduncles 3 to 18 

 mm. long, these as well as the pedicels minutely pubescent; pedicels 2 

 to 3 mm. long: flowers small: calyx-lobes ovate, obtuse, about 1 mm. 

 lone, niarsins scarious: corolla white or cream-colored, about 4 mm. 

 in breadth ; lobes elliptic-oblong, obtusish, rather closely pubescent 

 above: column short: mature fruit not seen. — Collected by C. G. 

 Pringle in Tomellin Canon, altitude 1540 m., 17 July, 1897, no. 

 7606. 



Most nearly related to 31. pedimculare, Decne., but differing in the 



VOL. XXXIII. — 31 



