184 
Ramuli laeves, purpureo-brunnei, glaberrimi, profunde canali- 
culati. Folia opposita, elliptico-oblonga, apice brevissime latis- 
sime subcuspidata, basi obtusa vel subcuneata, 5-10-5 cm. longa, 
2-5-5 em. lata, coriacea, lutescentia, utrinque valde reticulata, 
glaberrima, supra cage nervo medio et lateralibus prominulis, 
subtus opaca nervo medio prominente lateralibus prominulis; 
nervi laterales abestin te 9-10, basi patuli, arcuato-ascendentes, 
-5-5 mm. intra marginem anastomosantes; petioli 1-2 cm. 
longi, graciles; stipulae e basi — subulatae, usque ad 
2mm. longae. Thyrsi circiter 15 longi, minute puberuli, 
rhachi angulata profunde pdiinotinta (acblasick striata; cincinni 
2-5-flori; pedunculi 5-7 mm. longi; pedicelli 5-6 mm. longi. 
Flores caleare excluso 1-1-1-4 cm. longi. Calycis segmenta 
antica late ovata, rotundata, 2-2-2 mm. longa, 2-5 mm. lata, 
ciliolata; segmenta lateralia 1 mm. longa, 1.5 mm. lata; seg- 
mentum posticum 9-13 mm. longum (explanatum) 6 mm. latum, 
caleare descendente crasso 7:5 mm. longo. Petala ciliata; 
medium 4-5 mm. longum, lateralia minora. Filamentum 3 mm. 
longum; anthera 5-5-6-5 mm. longa, 1-3-1-5 mm. lata. 
Ovarium glabrum, 1-2 mm. longum; stylus rectus, 8-5 mm. 
longus, superne vix ampliatus. 
Mexico. Tabasco; between Atasta and La Tejeria, Rovirosa 
92. 
- 1053. Rhus costaricensis, Riley [Anacardiaceae-Anacardieae] ; 
affinis R. terebinthifoliae, Cham. et Schlecht., a qua indumento 
formaque foliolorum differt. 
Rami dense fulvo-tomentosi, striati, lenticellis magnis con- 
spicuis. Foliaimparipinnata, 3-4—juga, 9-13-5 em. longa, rhachi 
dense fulvo-tomeniosa, flexuosa. Foliola satis remota, circiter 
1'5-2 cm. distantia, obliqua, integra, ovato- -oblonga, submucro- 
nato-acuminata, basi valde inaequalia, latere superiori ppeigsia% 
inferiori acuto, brevissime petiolulata, 4-5 em. longa 1-5-2-5c¢ 
lata, supra praecipue secundum costam nervosque iataealse 
insculptos pilosa, subtus dense fulvotomentosa, costa nervisque 
lateralibus valde prominentibus. Paniculae magnae, ramis folia 
longe superantibus, ubique dense ‘eee tomentosae, ramis ramu- 
lisque flexuosis. Bracteae vix mm. longae, triangulares, 
obtusae, utrinque pilosae, mispinibus ciliatis. Sepala 5, ovata, 
obtusa, dimidium petalorum aequantia, marginibus ciliatis 
exceptis glabra. Petala 5, ovata, basi plus minusve cordata, 
apice rotundata, 1-5 mm. longa, 1 mm. lata, extra glabra, intus 
sparse sericea, marginibus ciliatis. Stamina 5, petalis multo 
breviora. Ovarium ovoideum, pubescens; styli connati, breves, 
heal capitatis. Druwpae circiter 6 mm. Jdiametro, longe 
pilosae 
Costa Rica. Prov. San José: Rio Virilla, 1100 m., fl. and 
fr. Dec., Tonduz in Donn. Smith 6999 (Herb. Inst. Nac. Costaric. 
9823) (type) ; 5 Prev, ee a near Cartago, 1275 m., fr. March, 
Cooper in Donn, Smith 572 
