ROBINSON AND BARTLETT. — PLANTS FROM GUATEMALA AND MEXICO. 55 



place." Euphorbia ephedromorpha, a unique plant in both habital and 

 technical characters, belongs to the § Alectoroctonum. The only Eu- 

 phorbia of the same affinity which has been seen is in the Gray Her- 

 barium from Cerro Quiengola, Oaxaca, Mexico, Caec et Ed. Selcr, no. 

 1611. It represents a clearly distinct new species of very similar habit, 

 but it cannot be described on account of the scantiness of the material. 



Acalypha euphrasiostachys Bartlett, n. sp., fruticosa ramosa 

 1 in. altitudine ; ramulis junioribus molliter pubescentibus ochraceis 

 aetate glabriusculis rubentibus ; foliorum limbis ovatis 3-8 cm. longis 

 2-4.5 cm. latis dentatis utrinque molliter pubescentibus vel supra 

 solum secus nervos pilosis, apice acutis vel caudato-acutis, basi max- 

 ime variabilibus acutis rotundatis vel subcordatis ; petiolis limbo ca. 

 quintuplo brevioribus ; spicis masculis axillaribus sessilibus ca. 1 cm. 

 longis nunquam ad basin bracteis femineis praeditis ; spicis femineis 

 axillaribus 2.5-7 cm. longis 4-7-bracteatis, dispositione formaque brac- 

 tearum speciebus alpinis generis Euphrasiae persimilibas ; bracteis 

 femineis 8 mm. longis 10 mm. latis unifloris 13-dentatis, dentibus 

 modice longis alternis brevioribus ; calycis masculi segmentis 4 ovatis 

 0.5 mm. longis, feminei segmentis 3 ovatis ca. 1 mm. longis; ovario 

 dense piloso; stylis viridibus bracteo exsertis 7 mm. longis multila- 

 cinuligeris. — -Zacapa, Department of Zacapa, Guatemala, 24 January, 

 1905, C. C. Beam, no. 190 (type, in hb. Gray). A species near Watson's 

 Acalypha multispicata, which has very similar fertile spikes. 



Clusia quadrangula Bartlett, n. sp., arborea 5-6 m. alta ubique 

 glabra ; ramis modice crassis subteretibus ; foliis coriaceis ovatis 3- 1 

 cm. latis 7-11 cm. longis, apice basique acutis, petiolo quam limbo 

 quintuplo brevioribus ; nervis lateralibus numerosis parallelis utrinque 

 prominulis inter se 1-2 mm. distantibus angulo ca. 45°acosta abeunti- 

 bus; inflorescentia terminali quam foliis superis duplo breviore ramosa, 

 ramulis angulosis plerumque in llorem ununi brevipedicellatum termi- 

 nantibus ; bracteolis infimis semi-ovatis basi connatis, sequentibus (a 

 sepalis non different) sepalisque 14-16 per paria decussatis coriaceis 

 semi-ovatis cordatis dorso carinatis, collective obpyramidatis quadran- 

 gulis (ex quo nomen specificum) ; petalis 4 coriaceis late ovatis quam 

 sepalis duplo longioribus ; staminibus pernumerosis in receptaculo 

 elevato valde concavo pentagono dense aggregatis liberis, omnibus an- 

 theriferis, filamentis perbrevibus paene nullis, antheris rimula longitu- 

 dinali dehiscentibus, connectivis haud productis. Flores feminei ignoti. 

 — Livingston, Department of Izabal, Guatemala, February 17, 1905, C. 

 CBeam, no. 56 (type, in hb. Gray). This Clusia has no obvious relation- 

 ship with any heretofore described species. Until pistillate flowers are 

 discovered it seems unwise to characterize a new section for its reception. 



