﻿1903 J . UNDESCRIBED PLANTS FROM GUATEMALA 5 



Los Verdes, Depart. Amatitldn, Guat., alt. iioo"^, Aug. 1893, Heyde et 

 Lux, n. 6157 ex PI. Guat. i&c, quas ed. Donn. Sm. 



Sideroxylon uniloculare Donn. Sm. — Folia glabra maxima 

 oblongo- vel obovato-elliptica cuspidato-acuminata basi cuneata, 

 nervis lateralibus parallelis remotis utrinque conspicuis, petiolis 

 brevibus. Calycis segmenta basi coalita jam in alabastro aperta. 

 Corollae calyce dimidio longioris lobi orbiculares. Stamina cum 

 staminodiis eis paullo longioribus lanceolatis sub apice tubi 

 affixa, antheris subsessilibus lateraliter dehiscentibus. Ovarium 

 depressO'obpyramidatum i-loculare, ovulo unico nunc pendulo 

 nunc lateraliter affixo. 



Folia coriacea 13-21'^"' longa 6-9^"' lata, cuspide obtusiuscula, nervis 

 lateralibus inter se 1-1.5^"* distantibus utrinque 12-14 subtus validis, venis 

 minutissime reticulatis subtus prominulis, petiolis canaliculatis 8-15 """^ lurigis. 

 Pedicelli ferrugineo-pubescentes dense fasciculati 7"""" longi, floribus 5-meris. 

 Calyx ferrugineo-pubescens 2"''" altus usque ad duas partes fissus, segmentis 

 ovatis consimilibus. Corolla glabra, lobis tubum bis superantibus margine 

 erosis. Antherae ovatae 0.5"^™ longae pilis albidis conspersae. Staminodia 

 i'^"' longa subintegra. Ovarium pubescens 0.75'^"' altum i.S™"" latum, stylo 

 subulato 0,5"""^ longo, stigmate parvo integro. Bacca inihi non visa. 



Secus Rio De Las Vueltas, Tucurrique. Costa Rica, alt. 635"", Maj. 1899. 

 Tondus, n. 13358 herb. nat. Cost. 



Styrax polyneurus Perk. — Arbor, rami subteretes, juniores 

 fusco-tomentosi, adulti demum glabrescentes, folia i-i.s*'"' longe 

 petiolata, lanceolata vel obovato-lanceolata vel obovato-oblonga, 

 12-9^^ longa, 4-2.25*^"^ lata, basi in petiolum a latere compressum 

 sensim cuneato-angustata, apice acuta vel breviter late acuminata, 

 apice ipso acutiusculo, papyracea vel subchartacea, integra, supra 

 juniora hinc inde pilos stellatos minutos gerentia, adulta glabra, 

 subtus pilis albidis lepidotis stellatis tomentosa, nervis 6-g-jugis 

 venisque supra vix, subtus valde prominentibus, venis validioribus 

 inter sese parallelis rectangulariter costae insedentibus, omnibus 

 dense reticulatis ; floras ignoti ; fructus ovoideus. 7^"^ longus, 

 3.4mm crassus, breviter mucronatus, lepidibus argenteis dense 

 tectis. — Ab incolis Resina dicitur. 



This species is closely related to S. myristicifolms Perk, in Bot. Jahrb. 

 31 : 481, but differs from it in the form and nervature of the leaf, and in the 

 color and shape of the hairs on the under surface. It is very noticeable that 



