PITTIER—PLANTS FROM COLOMBIA AND CENTRAL AMERICA, 233 
Schizolobium excelsum Vog. than to S. covilleanum Pittier, differing from the 
former probably in the number of the pinne and leaflets, in the shape and 
pubescence of the latter and the pubescence of the rachis of the pinnm, in the 
shorter pedicels, and in the longer calyx lobes, smaller petals, etc. An imma- 
ture specimen collected in the semiarid district of the Atlantic coast of 
Guatemala (Chiquimula and Alta Verapaz) by Sereno Watson (no. 248) prob- 
ably belongs to the same species. 
Named in honor of the collector, the lamented Prof. W. A. Kellerman, who 
lost his life in the course of his botanical survey of Guatemala. 
A LITTLE KNOWN SPECIES OF MACROLOBIUM. 
Macrolobium floridum Karst. Fl. Columb. 1: 151. pl. 75. 1861. 
A middle-sized tree, 20 to 25 meters high, with smooth grayish bark, irregular 
branching, and elongate crown. 
Leaves alternate, paripinnate, always 2-foliolate, glabrous. Stipules acicu- 
lar, 8 to 12 mm. long, glabrous and caducous; stipels smaller. Petiole 6 mm. 
long, very thick. Leaflets subsessile, obovate-lanceolate, oblique, with the 
narrow side within, the broad exterior side rounded at the base, acute at the 
apex, 25 to 85 cm. long, 9 to 11 cm. broad, light green above, paler beneath; 
nervation prominent beneath, with alternate veins anastomosed along the 
margin. 
Inflorescence racemose, 12 to 16-flowered, borne either on the trunks and 
limbs or at the ends of the branchlets. Peduncles 3 to 4 cm. long, thick, 
covered with a few small triangular acute bracts. Flowers pedicellate, about 
6 cm. long, with a small bract at the base. Pedicels 8 to 10 mm. long, bearing 
at the tip 2 obovate bractlets, these about 12 mm. long, more or less connate 
at the base, rounded at the tip, entirely glabrous. Calyx tube short-stipitate, 
1 cm. long, callous and hairy inside at the throat; sepals 4, imbricate, ovate- 
elliptic, slightly attenuate at the base, rounded at the tip, about 2 cm. long and 
6 mm. broad, entirely glabrous. Petal single, unguiculate, elliptic-lanceolate, 
twice as long as the sepals (7 mm. long, claw included), about 12 mm. broad, 
crispate and irregular on the margin, very caducous, pinkish white (turning to 
yellowish brown by desiccation). Stamens 8, equal to or a little longer than 
the petal; filaments thick at the base, subulate at the tip; anthers ovate, ver- 
satile, minutely papillose on the upper face. Pistil 4.7 to 5 em. long; ovary 
stipitate, minutely pubescent on the sutural margins; ovules 5; style sparsely 
pubescent at the base, very long, arcuate, terete; stigma rounded-capitellate, 
papillose. 
Legume 12 to 16 cm. long, 4.5 to 5 cm. broad, ligneous, short-stipitate, 
obtusely apiculate, dehiscent; upper suture broad and slightly canaliculate; 
valves twisted after dehiscence as in Brownea. Seeds 4 or 5, ovate, flat, about 
8.5 em. long and 2.5 em. broad. 
Type from mountains near Puerto Cabello, Venezula. 
Again collected on the plain of Sperdi, near Puerto Obaldia, San Blas Coast, 
Panama, near sea level, flowers and fruit, September 8, 1911, by H. Pittier 
(no. 4355). 
Our specimens differ from the original description in their smaller in- 
florescences and somewhat longer pedicels, and in the form of the bractlets, 
the more or less complete absence of hairs, and a few minor details, but the 
agreement is so perfect in all other particulars that there is little room for 
doubt as to the identity of our specimens with the Venezuelan species described 
by Karsten. 
47879—17 
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