PLANTS OF THE TRES MARIAS ISLANDS. 89 



having the styles bifurcate, to the middle only, and flat spreading with 

 no tendency to reflexion or peltation as in the other species. The 

 fruits may prove this to be a distinct species. May 3 to 25, 1897 (Nos. 

 4298 and 4202)." Millspaugh MSS. 



Euphorbia sp. 



Specimens are indeterminable from lack of characters. May 3 to 25, 

 1897 (No. 4215). 

 Euphorbia nelsoni Millspaugh. 



Euphorbia nelsoni Millspangh, Bot. Gaz.26:268. 1898. 



May 3 to 25, 1897 (No. 4294, not 4284, as published). 



FIG. 2. Euphorbia neltoni. 



The original description is as follows: "Fruticosa, glabra, longe et 

 corymbosa rarnosa, ramis teretis, internodiis longis, cortex maculatis, 

 maculio oblongis roseus. Foliis inferioris fasciculatis, petioliis longis 

 filamentosis, pagina tennis ovato-cuneatis, obtusis, apiculatis, foliis 

 floralibus oppositis, orbiculatis petiolis limbum aequantis. Involucriis 

 terminalibus corymbosis, pedunculatis, campanulatis glabris, lobis latis 

 truncatis irregulariter C-8 fimbriatis, glandulis 5, transversis oblongis 

 integris, appeudicibus minntis vel nullus. Stylis longis revoluto-cir- 

 cinalis. Capsule luridre profunde tri-sulcato, semine sub-globosis 

 pallide-fuscis, scrobiculatis, linea media nigra geminatis, ruga? anasto 

 mosautis tuberculatis 2 mm. long, 1.9 mm. lat." 



Several Euphorbias were collected on the islands in too imperfect 

 condition to determine, and it has been thought advisable to reproduce 

 the cut 1 of the present species for the purpose of assisting future study 

 of the flora. 



'Through the kindness of the editors of tho Botanical Gazette I am permitted to 

 .use this illustration. 



