April, 1916. Euphorbiace^ — Millspaugh 419 



Izamal collection of 1888 deposited in Kew Herbarium; duplicates of 

 these in herb. Field Museum bear its cat. nos. 181,499 ^nd 181,500. 



Croton glandulosepalus sp. nov. 



A tall, white-barked shrub with long, terminal spikes and thin, 

 ovate-lanceolate leaves clustered toward the tips of the branchlets 

 leaving the branches bare. Leaves ovate-lanceolate, sparingly ap- 

 pressed-stellate, acute to aciuninate, apiculate, 4-6 x 2-3 cm., 3-nerved 

 at the base, both surfaces dotted with scattering, fine, slender, stellate 

 hairs which nearly disappear when the leaves are fully mature; petioles 

 slender, about one-third the length of the blade, puberulous; stipules 

 aristate, about 5 mm. long. Inflorescence monoecious, terminal in 

 elongate, rather openly flowered spikes with large, ovate bracts bear- 

 ing a number of long-stalked, ciliate glands on the margin. Male 

 flowers short-pedicellate enclosed by the scaphoidally enveloping bracts, 

 caly^ 4-lobed, woolly with stellate hairs, lobes ovate, petals 4, thin, 

 ovate-scaphoid, glabrous or nearly so; stamens 10, filaments short 

 (about the length of the anthers), glabrous, anthers large, innate. Fe- 

 male flowers: thick pedicelled and densely white-woolly below; calyx 

 4-lobed the lobes ovate-lanceolate, sarcous, exteriorly invested with a 

 dense mass of red, stalked-globular glands and enclosing the pistil 

 closely; petals small, flabelliform, margin stalk-glandular; ovary densely 

 white-stellate woolly; styles 3, each 4-cleft to the base, the filamentous 

 branches incurled at their tips. Capsule and seed unknown. 



Yucatan, common on the open plain from Progreso to Merida, 

 Gaumer 11 54 (Type in herb. Field Musetun cat. no. 438,492). Also re- 

 turned by Dr. Gatmier from Buena Vista Xbac, 1046 and from Chichan- 

 kanab 2204. 



Croton malvavisciifolius sp. nov. 



Shrub with terete, ferrugineous branches, large bi-colorate, irregular- 

 ly and doubly serrate-dentate leaves, and short monoecious terminal 

 spikes. Stems rusty stellate-hairy the central ray of the stellae erect 

 and acicular the base appressed to the bark; stipules ligulate; petioles 

 somewhat less than one-third the length of the leaf blade. Leaves broad- 

 ly ovate, 7-14x5-10 cm., acute to acuminate, palmately 7-nerved, 

 dark-brown, papillate and scattered stellate-hairy above, light-green 

 and densely felted with stellate hairs beneath, each leaf bearing 2 

 fimnel-shaped, long, stalked glands at the petiole, base strongly cordate, 

 apex acute, margin irregularly doubly-serrate, dentate with a stalked, 

 funnel-shaped gland in the sinus of each of the larger dentations. In- 

 florescence monoecious, terminal, short, female below male above. 



