l9ioJ Brandegee: I'lanlae Mexicanae L'urpusianae. VIL 185 



Phyllanthus oaxacanus sp. nov. 



Frutex glaber: foliis ovatis apice acutis utrinque viridibiLS. ca. 6.5 

 cm. longis, 4.4 cm. latis : petiolis 3-4 mm. longis; .stipuli.s brevibiis 

 deciduis subulati.s: floribns panicnlatis, paniculis dioicis vel monoicis, 

 usque ad 7 cm. longis; laciniis ealycis Horum feminorum 6, oblongis 

 obtu.sis, di.sco iirceolato creniilato, stylis mdlis ; laciniis ealycis floriim 

 masonlorum 6, disci glandulis 6 geminatis, staminibiis 3, filamentis 

 coniiatis brevibiis, antheris horizontaliter aperientibns : capsulis glabris, 

 ca. 5 mm. latis, seminibus levibus. 



This species belongs to Euphyllanthns witli P. adenodiscus ]Miill. 

 Arg. and related species. It differs slightly from the description of 

 the section in the length of the styles. Collected near San Geronimo, 

 Oaxaca. No. 7154. Type, Herb. Univ. Calif. No. 175048. 



Euphorbia. (Anisophyllum) picachensis sp. nov. 



Prostrata : radice crassa lignosa: caiilibns dense albo-tomentosis. ca. 

 1 dm. longis: foliis oblongis obtiisis utrinque tomentosis. supra viri- 

 dioribus. basi valde inaequilateralibas. margine crenato-dentatis. ca. 

 1 cm. longis, 5 mm. latis ; sti])ulis brevibus lanceolatis: involucris par- 

 vulis subsessilibus. l-2-axiIlaril)us in ramulos breves folidsos tomen- 

 tosos dispositis; glandulis 4 appendicibus minutis vel latis. interdum 

 auriculatis; stylis bifidis : cap.sula tomentosa breviter .stipitata: semini- 

 bus aeuto-oblonais tetragonis transverse sulcatis. 



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This Euphorbia is related to E. adenoptera Bertol. but is more 

 densely tomentose than that species. Collected on Cerro de Picacho, 

 Oaxaca. No. 7163. Type. Herb. Univ. Calif. No. 175035. 



Stillingia propria sp. nov. 



Frutescens glabra ramosa : foliis oppositis vel alternis anguste el- 

 lipticis apice acuminatis basi in petiolum brevem attenuatis. margine 

 brevissime glanduloso-dentato-serratis. usque ad 5.5 cm. longis, 1.5 cm. 

 latis : spicis gracilis solitariis terminalibus, ca. 2 cm. longis ; floribus 

 maseulis sub bractea quaque singulis, calyce campanulato. staminibus 

 2: floribus femineis sub bracteis inferioribus solitariis vel in axillis 

 rannilorum singulis pedicellatis. bracteolatis. stylis usque ad medium 

 in columnam connatis apicibus reflexis : capsula in coccos 2-valves dis- 

 silicuti columellam plerumque bene evolutam reliquenti. receptaculo 

 divarieato-3-coruuto indurato persistonti : seminibus su])globosis apice 

 acutis, juxta apieem depre.ssis. 



The fruit of this species has a well developed columella witli which 

 character it is not alone in the genus for other species usually referred 



