84 



lecta observatur praeserlim in planta uberiori pube gau- 

 dente. Prope Jalapam. Aug. 



55. Euphorbia marginata H. B. K. 2. p. 49. 



In pascuis prope Vera -Cruz. Julio. 



56. Euphorbia campestris n. sp. E. Pithyusae 



proxima, a qua differt: foliis tenuioribus angustioribus; 

 caule ramisque laevibus, nee sub leiite forti lenuiter ex- 

 imie granulalis ; involucri appendiculis Iruncatls bicorni- 

 bus; seminlbus paulo majoribus brunneis; habilu elatiori, 

 graciliori ; ramis ( lignosis ) magis virgatis. — Umbella in 

 speciminibus noslris 4-radiata, ramis pluries dichotomis. 

 — — In planiile inier TIachichuca et Tepelitlan. Sepl. 



CROTON L. 

 /. MonoicL * Arhoresccntcs vel Fruticosi. 



57. Ckoton Pseudo- China n. sp. , foliis leviter cor- 

 datis ovalis, obtuse acuminatis, 3 — ^5 nerviis, subtus le- 

 pidoto- argenteis, supra viridibus lepidibusque albis adsper- 

 sis, margine leviler repandis; racemis simplicibus axillari- 

 bus lepidoto-ferrugineis, monoecis; ifloribus omnibus pen- 

 lasepalis pentapetalisque, masculis decandris; capsulis le- 



pidoto- squamosis. Folla maxima 4 poil. longa, 3 poll. 



lata. Lepides orbiculares umbonati, argentei, unibone in- 

 terdum ferrugineo, margine interdum radiatim lacero v. in- 

 ciso. Pelala inlus pilosa, margine densius piloso. — Species 

 atlinis Cr. EJuteriac Sw. , qui differt: foliis non corda- 

 tis, perforalis, vix nervosis, minoribus; racemis composilis. 

 Affmis quoque Cr. micajts Sw., qui diversus: racemis 1er- 

 minalibus, floribus foemineis apetalis, foliisque multo mi- 

 noribus. Plan del rio, Tierra calienle Juli. — Cor- 



tex hujus fruticis in officinis Jalapensibus sub nomine 

 Quina blanca s. Copalche (cfr. Scblechiendalii traclatum 

 de hoc medicamenlo in Berl. Jahrb. d. Pharmacie). 



