310 MEXICO. [Amentacece. 



Adrien de Jussieu unites the Hermesia of H. B. K., with Alchornea, Sw. How far justly we have no 

 means of determining. 



1. Croton syringafolius. H. B. K. Nov. Gen. Am. 2. p. 67. 



Hab. Acapulco. — The lower leaves are almost entirely cordate, the upper ones more approaching to ovate. 



I. Pedilanthus tithymaloides. H. B. K. Nov. Gen. Am. 2. p. 63. Bot. Reg. t. 837. 



1. Euphorbia pilulifera. L. — Schlecht. in Linncea, 5. p. 83. — E. globulifera. H. B. K. 

 Nov. Gen. Am. 2. p. 56. 



2. E. ocymoides. L. ? — Schlecht. in Linncea, 5. p. 83. 



3. E. strigosa; caulibus herbaceis erectis flexuosis, foliis strigoso-hirsutis lanceolatis 

 (2 poll, longis) brevissime petiolatis integerrimis, involucris cupulatis laceratis eglandulosis 

 paucis subumbellatis, bracteis sub 4 coloratis umbella longioribus. 



This has a perennial root, bearing several flexuose branching stems, about a foot long. 

 1. Poincettia pulcherrima. Grah. in Bot. Mag. t. 3493. 

 1. Acalypha rhombifolia ? Schlecht. in Linncea, 7. p. 382. 



Ord. LXXV. URTICE^:. Juss. 



1. Boehmeria elongata. Fisch. — Schlecht. in Linnaa, 5. p. 81. 



1. Ficus lancifolia; foliis sublonge petiolatis oblongo-lanceolatis tenui-acuminatis 

 integerrimis submembranaceis, fructibus solitariis vel ternis axillaribus globosis sessilibus 

 glabris. 



Ord. LXXVI. PIPERACE^. Kunth. 



1. Piper scabrifolium ; fruticosum, ramis obtuse tetragonis pubescentibus, foliis sub- 

 coriaceis brevi-petiolatis oblongo-ovatis brevi-acuminatis venosis utrinque scabris basi 

 inaequalibus, spicis brevi-pedunculatis elongatis cylindraceis folio brevioribus. 



2. P. patens; fruticosum, ramis divaricatis ad nodos geniculatis, foliis ovato-lanceo- 

 latis membranaceis acuminatis utrinque molliter pubescentibus nervosis basi acutis vix 

 inaequalibus, spicis brevi-pedunculatis cylindraceis folio dimidio brevioribus. 



3. P. begonimfolium ; glaberrirnum, ramis teretibus, foliis oblongo-ovatis membranaceis 

 nervosis acutiusculis basi valde inaequalibus utrinque rotundatis, spicis elongatis cylin- 

 draceis brevi-pedunculatis folium aequantibus. 



Ord. LXXVII. AMENTACEjE. Juss. 

 1. Salix microphylla ; valde ramosa, foliis parvis patentibus sparsis sessilibus lineari- 

 lanceolatis acutis obscure serratis costatis enervibus glabriusculis junioribus sericeis, 

 stipulis minutis caducis, amentis cosetaneis in ramulis terminalibus ovalibus parvis, 



