54 PROCEEDINGS OF THE AMERICAN ACADEMY. 



breviter petiolatis ovatis 4 cm. longis basi obtusis apice acutis ; ramulis 

 fioriferis in quasi-umbellas quadrifloras terminantibus ; pedunculis 7-8 

 mm. longis cum pedicellis aequilongis articulatis ; bracteis pedunculo- 

 rum bracteolisque pedicellorum lanceolatis minutis ; sepalis 5 albi- 

 cantius viridibus 2 mm. longis, 4 basi biglandulosis glandulis magnis ; 

 staminibus glabris calycem valde superantibus, omnibus basi coalitis ; 

 ovariis in unum pyramidatum faciebus concavis coalitis ; fructu albo- 

 lanuginoso dorso medio cristato crista integra glabra ; fructus alis 

 glabris viridibus rubro-tinctis anguste oblongis, duobus exterioribus 

 ca. 13 mm. longis, duobus interioribus ca. 9 mm. longis. Petala non 

 visa. — Gualan, Department of Zacapa, Guatemala, January 19, 1905, 

 C. C. Deam, no. 150 (type, in hb. Gray). T etrapteris emarginata 

 belongs among the glabrous-leaved species of Jussieu's § Tetrapteris 

 * Anisopterae. It may be easily distinguished from any of the Mexican 

 species by the leaves of the flowering branches. 



Euphorbia ephedromorpha Bartlett, n. sp., basi lignescenti ; ra- 

 mis prostratis modice crassis longitudine usque ad 10 dm. saepe sim- 

 plicibus viridibus flexuosis aphyllis juventate valde compressis, aciebus 

 ambabus bialatis ; internodiis 2-4 cm. longis minute granulatis gla- 

 bratis vel perexigue pilosis, in marginibus alarum minutissime scabratis ; 

 nodis baud incrassatis corpore papillato (nonne cum folio aequivalenti X) 

 praeditis ; stipula una glanduliformi crateriformi pilosa recte super 

 papillam (de qua vide supra) et quam eandem parviore ; cymis axil- 

 laribus et terminalibus dichotomis 2-r2-cyathiis valde glanduloso-pilosis 

 bracteatis ; bracteis ad dichotomias oppositis 1.8 mm. longis linearispa- 

 tulatis dense glanduloso-pilosis ; cyathiis anguste conicis 3 mm. longis 

 glanduloso-pilosis ; pedicellis gracilibus cyathiis aequilongis ; involucri 

 segmentis propriis perbrevibus flabelliformibus ad mediam digitatim 

 7-8-laciniatis ; glandulis 5 planis transverse ovatis marginatis appen- 

 diculatis ; appendicibus rectis quam glandulo 8-plo quam involucri seg- 

 mentis triple longioribus anguste spatulatis glabris ; stylo brevi usque 

 ad basin bifido ; ovario 2 mm. longo glabriusculo stipitato, stipite 

 cyathio paulo longiore ; seminibus lilacinis ovoideis foveolatis. — Gua- 

 lan, Department of Zacapa, Guatemala, 11 January, 1905, C. C. Deam, 

 no. 232 (type, in hb. Gray). In regard to this species ]\Ir. Deam 

 "writes: " I recall the place where it grew very vividly. There is a road 

 leading from Gualan to the Motagua River, and as is the case with all 

 travelled ways in Guatemala, it is washed into deep gullies. This plant 

 (no. 232) was found in the nude, rocky, dry soil at the side of the road, 

 on an angle of about 75°. It grew prostrate in patches extending over 

 an area perhaps six feet square. The soil was of a red type, similar to 

 that around Chattanooga and Atlanta. I did not see it in any other 



