58 PROCEEDINGS OF THE AMERICAN ACADEMY. 
Cerdia truncatifolia Bartlett, n. sp., arborea 5-7 m. altitudine; 
ramulis 2-3 mm. crassis flexuosis juventate griseo-ferrugineis pubes- 
centibus aetate griseis glabris ad nodos inerassatis; foliorum cica- 
tricibus reniformibus vel in ramulis vetustioribus lunatis, interdum 
gemma accessoria inter cornua infra gemmam normalem praeditis; 
foliis late ovatis maximis infra mediam 5 cm. latis 7.5 cm. longis inte- 
gerrimis vel apicem versus crenato-dentatis basi obtusis truncatis apice 
plerumque abrupte acutis supra scabris atroviridibus subtus velutino- 
pubescentibus griseo-viridibus, petiolis quam 8 mm. brevioribus; 
cyma dichotoma pauciflora foliis breviore omnino ferrugineo-pubes- 
centi ; pedicellis gracilibus 2-7 mm. longis; calyce campanulato ca. 1 
em. longo juventate 5 mm. diametro ad fructus maturitatem plus 
minusve inflato 5-nervato 5-laciniato, laciniis irregulariter angusto- 
deltoideis ; corolla alba (?) infundibuliformi 15 mm. longa extus intus- 
que puberula usque ad mediam 5-lobata, tubo brevi, lobis rotundis i 
mm. latis; staminibus 5 baseis loborum vix attingentibus, filamentis 
5 mm. longis ; stylo stamina aequante apice bis bifido ; drupa (imma- 
tura) ovoidea minute puberula mucronata calyce inclusa. — Zacapa, 
Department of Zacapa, Guatemala, January 23, 1905, C. C. Deam, 
no. 160 (type, in hb. Gray). In no. 160%, collected at the same logal- 
ity, the flowers and foliage are greatly reduced in size, a variation no 
doubt purely ecological. The shape of the leaves, which are remarkably 
like those of Polygonum cuspidatum Sieb. et Zuce., suffices to distin- 
guish Cordia truncatifolia from all other species of Sebestenoides. : 
Russelia rugosa Robinson, n. sp., fruticosa; ramis ramulisque 
6-angularibus tomentello-puberulis pallide griseis; internodiis 5-8 
em. longis ; foliis oppositis vel ternis late ovatis obtusiusculis grosse 
crenato-serratis basi integerrimis cuneatis supra scabris valde rugosis 
atroviridibus subtus vix pallidioribus laxe reticulato-venosis breviter 
pubescentibus 5.5-8 em. longis 2.6-4.8 em. latis, petiolo crassiusculo 
5 mm. longo supra canaliculato pubescenti; cymulis subsessilibus 
axillaribus verticellastros parvifloros formantibus ; calycis lobis lanceo- 
lato-linearibus angustissimis caudato-attenuatis sordide pubescentibus 
nigrescentibus 5-6 mm. longis ; corolla tubiformi verisimiliter coccinea 
11-12 mm. longa pubescenti ; capsula ovoidea nigrescenti levi nitida 
4 mm. longa. — Gualan, Department of Zacapa, Guatemala, alt. 128 ™- 
18 January, 1905, ©. 0. Deam, no. 183 (type, in hb. Gray). A spectes 
pretty well marked in the genus by its large and very rugose leaves. | 
Tetramerium gualanense Robinson & Bartlett, n. sp., suffrat- 
‘ 
ee ie oe % 
(hints Wereo ae 
cosum 1 m. altum ramosum, novellis viscoso-pubescentibus ; caulibus 3 
PSS, SRC ER | ae | . . ‘ ee en, tymtate 
LiB8eIngn-origaia m 
subglabratis ; foliis oppositis petiolatis membranaceis subconcoloribus 
