Part 3, 1918] ALLIONIACEAE 185 
oval-obovate, 8.7 em. long and 5.6 cm. broad or smaller, broadest above the middle, narrowed 
or attenuate at the base, rounded at the apex and cuspidate-acuminate, coriaceous, sub- 
concolorous, lustrous above and glabrous, dull beneath and at first sparsely rufo-hirtellous 
but soon glabrate, the margins slightly revolute, the lateral veins prominent, numerous, 
usually 10 or more; staminate peduncles slender, erect, 1.4-3.3 cm. long, the inflorescence 
subcorymbose, 2 cm. broad or less, rather few-flowered, dense, the branches ferrugino-puberu- 
lent, ascending, the ultimate cymules 2-5-flowered, the flowers subsessile or on pedicels 1 mm. 
long or shorter, the bractlets ovate, subobtuse, 1 mm. long, the perianth funnelform, 3.5—4 
mm. long, rufo-puberulent, the limb obscurely 5-lobed, 3 mm. broad; stamens commonly 9, 
rarely 8, 5.5 mm. long or less; pistillate flowers and fruit unknown. 
TYPE LocaLity: Grenada, 
DISTRIBUTION: Grenada. 
15. Torrubia panamensis Standley, sp. nov. 
Pisonia Pacurero Seem. Bot. Voy. Herald 192. 1854. Not P. PacureroH.B.K. 1817. 
Branches slender, grayish-brown, the branchlets slender, densely ferrugino-puberulent, 
even in age, the internodes short; leaves opposite, very unequal, the petioles slender, 3-16 
mm. long, densely ferrugino-puberulent, the blades oblong-obovate to oval-obovate, broadest 
above the middle, 5-8.5 cm. long, 2-3.8 em. wide, cuneate-attenuate at the base, abruptly 
acute or cuspidate-acuminate at the apex, rarely obtuse or rounded, some of the blades often 
much reduced and only 5-10 mm. long, thin, deep-green, concolorous, glabrous, or sparsely 
puberulent beneath along the veins, the margins plane or obscurely revolute, the lateral veins 
evident, slightly arcuate, laxly anastomosing near the margins, the veinlets usually evident 
and finely reticulate; peduncles terminal, very slender, flexuous, sometimes pendulous, 2-4.5 
cm. long, sparsely puberulent, the inflorescence loosely corymbose, 2-3 cm. broad, few-flowered, 
the pistillate flowers solitary, on slender, densely puberulent pedicels 1.5-3 mm. long, or a few 
of the flowers sessile, the bractlets linear, 1 mm. long; staminate perianth campanulate, 3 mm. 
long, puberulent; stamens 6, long-exserted; pistillate perianth ellipsoid-oblong, 3 mm. long, 
constricted below the apex, ferrugino-puberulent. 
Type collected on Taboga Island, Gulf of Panama, in May, 1911, H. Pittier 3602 (U. S. Nat. 
Herb. no. 678658). 
DISTRIBUTION: Panama. 
ILLUSTRATION: Seem. Bot. Voy. Herald #1. 34. 
16. Torrubia fragrans (Dum.-Cours.) Standley, Contr. U. S. Nat. 
Herb. 18: 100. 1916. 
Pisonia obtusata Sw. Fl. Ind. Occ. 1960. 1806. Not P. obtusata Jacq. 1798. 
Pisonia fragrans Dum.-Cours. Bot. Cult. ed. 2. 7: 114. 1814. — 
Pisonia nigricans Choisy, in DC. Prodr. 13?: 442, in part. 1849. Not P. nigricans Sw. 1800. 
Pisonia inermis Griseb. Fl. Brit. W. Ind. 71. 1859, in part. Not P. inermis Jacq. 1763. 
Torrubia inermis Britton, Bull. Torrey Club 31: 614, in part. 1904. 
Pisonia fragrans oblanceolata Heimerl, Symb. Ant. 7: 213. 1912. 
Tree, 15 meters high or less, the branches ascending, grayish or brownish, stout, the 
branchlets grayish- or rufo-puberulent, the internodes ustially short; leaves opposite, often 
very unequal and irregular, the petioles 3-10 mm. long, the blades rhombic-oval, rhombic- 
obovate, obovate-oblong, obovate, or oblanceolate, the smallest rarely suborbicular, usually 
broadest above the middle, 3-9 cm. long, 2.5-5 cm. wide, attenuate to acute at the base or 
rarely obtuse, rather abruptly acute or acuminate at the apex, or sometimes rounded or even 
emarginate, very rarely bilobate, thin, glabrous, concolorous, often lustrous above, dull be- 
neath, the margins plane, the lateral veins evident, usually numerous and approximate, 
slightly arcuate, laxly anastomosing near the margins, the veinlets often finely reticulate 
beneath; peduncles mostly terminal, stout, 2-4.5 em. long, sparsely puberulent or glabrate, 
the inflorescence cymose, 2-6 cm. broad, many-flowered, the branches stout, spreading, 
puberulent or finally glabrate, the flowers sessile or on pedicels 1-2 mm. long, in glomerules of 
3-5, the bractlets lance-ovate, 1 mm. long or less, puberulent; staminate perianth tubular- 
funnelform, 3-4 mm. long, puberulent, obtusely 5-denticulate; stamens 6-8, less than twice 
