60 Contributions from the Gray Herbarium 
the genus has hitherto been recorded from north of the Isthmus of 
Panama. Nevertheless, the species here described is so closely in 
agreement with the South American species, particularly A. 
Planchonianum Engl., in leaves, pubescence, and details of the 
staminate inflorescence, that I have no hesitation in considering 
them congeneric. From the previously described species A. 
Conzattii is distinguished by the shape, size, and pubescence of its 
leaflets. 
Myernpa oxyphylla Blake, sp. nov. Frutex vel arbor ramosa. 
Rami seniores subteretes cortice laete brunneo glabro lenticellato 
tecti, novelli olivaceo-virides quadrangulares glabri. Folia oppo- 
sita vel interdum alterna lanceolata vel ovato- vel elliptico- 
lanceolata acuminata basi acute inaequaliterque cuneata obscure 
crenulato-serrata dentibus mucronulatis appressis supra saturate 
viridia subtus paullo laetius viridia utrinque glabra infra paullum 
venosa (venis 5~6-jugis paullum prominulis curvato-anastomo- 
santibus) 4.5-7.5 em. longa 1.2-2.5 em. lata, in petiolis supra 
subcomplanatis submarginatis 3-5 mm. longis. Paniculae axil- 
lares saepius pseudo-terminales dichotome divaricateque ramosae 
usque ad 7.5 cm. longae 8.5 cm. latae (pedunculo 1.2-3 em. longo 
incluso), ramis et ramulis filiformibus purpurascentibus sparse 
puberulis, pilis patentibus basi purpureis; bracteae lanceolatae 
acutae puberulae 2-3-glanduloso-denticulatae dentibus purpuras- 
centibus ca. 0.5 mm. longae; pedicelli bibracteolati 1.54 mm. 
longi. Sepala 4 depresso-orbicularia late rotundata erosula glabra 
0.5 mm. longa 1 mm. lata. Petala 4 late obovata apice rotundata 
sO praecipue basi purpurascentia glabra 1.6 mm. longa 1. 2 
ta. Stamina 4 antisepala, filamentis ca. 0.8 mm. longis. 
Discus valde 4-lobus, staminibus lobis alternis. Ovarium glabrum. 
Fructus asymmetricus viridis glaber verrucosus 11 mm. longus. — 
Oaxaca: Cafetal Nueva Esperanza, Dept. Pochutla, 800 m.; 7 
April 1917, Conzatti, Reko, & Makrinius 3107 (rypx in Gray Herb. ). 
— Nearest to M. macrocarpa Brandegee, which has larger leaves 
puberulous along the midvein beneath, smaller stricter more 
pubescent ni of larger flowers, and larger fruits. 
Blake, sp. nov. Frutex vel arbor. Rami 
tenues seniores cortice griseo glabro tecti, novelli fusci pallido- 
lenticellati glabri. Folia alterna ovalia vel ‘obovato-ovalia acumi- 
nata basi acute cuneata grosse crenato-serrata (dentibus 11-16- 

