104 Contributions from the Gray Herbarium 
ODONTONEMA paniculiferum, sp. nov. Frutex laxus tenuis. Caulis 
brunneus subteres ad nodos paullum incrassatus et anceps ob- 
secure cystolithiger glaber, internodiis superioribus ca. 5 em. longis. 
Folia elliptica apice acuta breviter (ad 8mm.) acuminata basi 
cuneata integra vix sinuata obscure cystolithigera subtus ad costam 
sparsissime strigosa ceterum glabra, nervis lateralibus ca. 8-9- 
jugis validis, 12-14.3 em. longa 4.3-4.9 em. lata, in petiolis glabris 
5-6 mm. longis. Panicula terminalis trichotome divisa ad 2.3 dm. 
longa 1.4 dm. lata multiflora subglabra vel sparse minutissimeque 
puberula, bracteis (saltem mediis et superioribus) minimis ad 1.5 
mm. longis subulatis, internodiis 0.8-2.4 cm. longis; flores op- 
positi solitarii vel rare fasciculati in pedicellis plus minusve paten- 
tibus glabris 5-7 mm. longis. Bracteolae laterales 2 minutae 
lanceolato-subulatae ad 0.6mm. longae. Calycis tubus subglo- 
bosus glaber ad 0.6mm. longus; segmenta 5 lineari-subulata 
aequalia attenuata sparse ciliolata ad 2mm. longa. Corolla plus 
minusve puberula 1.9 em. longa obscure bilabiata; tubus ad basin 
ampliatus deinde constrictus in fauces infundibuliformes sensim 
ampliatus; labium superius 4mm. longum usque ad basin bilo- 
batum lobis deltoideo-ovalibus obtusis ciliolatis; inferius aequale 
ad basin 3-lobum lobis inter se aequalibus eis labii superioris simili- 
bus paullo angustioribus ciliolatis. Stamina 2; antherarum loculi 
aequales 2 mm. longi oppositi glabri basi mutici, connectivo apice 
adunco; filamenta glabra 4mm. longa. Staminodia 2 oblique 
obovata subobtusa subsessilia 0.5 mm. longa e filamentis staminum 
omnino libera. Stylus integer. Ovarium 4-ovulatum. Capsula 
sensim clavata glabra 2.1 em. longa 2.5 mm. lata saepius 2-sperma. 
Semina dense reticulato-scrobiculata. — British Honpuras: 4 
slender drooping shrub in deep shade, forest near Manatee Lagoon, 
8 Jan. 1906, M. E. Peck 278 (rypE in Gray Herb.). — From OpoN- 
TONEMA geminatum (J.D. Sm.), comb. nov. (Thyrsacanthus gemi- 
natus J. D. Sm. ! Bot. Gaz. xiii. 75 (1888)), of Guatemala, this new 
species differs inter alia in its glabrous or subglabrous pedicels and 
panicle, smaller corolla, and especially in its androecium. In 0. 
geminatum the staminodia are linear and attached laterally to the 
decurrent bases of the filaments of the perfect stamens. The upper 
lip of the corolla in O. geminatum is merely notched, while in 0. 
paniculiferum itis divided to the base, but the two seem strictly 
congeneric. With other published species of Odontonema (Thyrsa- 
canthus), O. paniculiferum requires no special comparison. 
