20 SUPPLEMENT. 



18. Bursera penicillata, Engler in DC. Monogr. Phanerog. iv. p. 52. 

 Elaphrium glabnfolium, Jacq. ex H. B. K. Nov. Gen. et Sp. vii. p. 28 ; Schl. in Linnsea, xvii. p. 249. 

 Elaphrium penicillatum, DC. Prodr. i. p. 724; Caiques des Dess. PI. Fl. Mex. 203, et xxx. c. 



South Mexico, Oaxaca (Galeotti, 4006 ; Vhde), Volcan de Jorullo {Humboldt & 

 Bonpland ; Schiede), San Francisco de Jetecala (Schiede). 



19. Bursera delpechiana, Poisson ex Engler in Monogr. Phanerog. iv. p. 53. 

 Mexico. 



20. Bursera aloexylon, Engler in DC. Monogr. Phanerog. iv. p. 52. 

 Elaphrium aloexylon, Schiede in Linnsea, xvii. p. 252. 



South Mexico, Real de Huantla and other localities in the hot region (Schiede). 



21. Bursera bicolor, Engler in DC. Monogr. Phanerog. iv. p. 53. 

 Elaphrium bicolor, Schl. in Linnsea, xvii. p. 625. 



|X South Mexico, Seal de Huantla, San Francisco, Jetecala, and other localities in the 



hot region (Schiede), without locality (KarwinsJci), Cuernavaca (Knechtel). j — <Jx^ 



22. Bursera pannosa, Engler in DC. Monogr. Phanerog. iv. p. 54. 

 South Mexico, Mirador, and San Felipe (Liebmann). 



23. Bursera Sessiliflora, Engler in DC. Monogr. Phanerog. iv. p. 55. 

 Mexico, without locality (Karwinski). 



24. Bursera SUbmoniliformis, Engler in DC. Monogr. Phanerog. iv. p. 55. 

 Mexico, Rio Vuellas (Liebmann). (jWU*v\ 



i/^ 25. Bursera CUneata,Engler in DC. Monogr. Phanerog. iv. p. 56. 

 Elaphrium cuneatum, Schl. in Linnsea, xvii. p. 629. 



South Mexico, Guadalupe, valley of Mexico (Bourgeau, 338), near Zamalitzlahuaca 

 and Iguala (Schiede), without locality (Ehrenberg ; Schmitz). 



26. Bursera SChiedeana, Engler in DC. Monogr. Phanerog. iv. p. 57. 

 South Mexico, near Huantla (Schiede). 



27. Bursera excelsa, Engler in DC. Monogr. Phanerog. iv. p. 57. 

 Elaphrium excelsum, H. B. K. Nov. Gen. et Sp. vii. p. 30, t. 611. 



South Mexico, frequent between Acapulco and Venta del Exido (Humboldt & JBon- 

 pland). 



^ 28. Bursera jorullensis, Engler in DC. Monogr. Phanerog. iv. p. 57. 



Elaphrium jorullense, H. B. K. Nov. Gen. et Sp. vii. p. 28, t. 612; Schl. in Linnsea, xvii. p. 628. 



South Mexico, at the foot of the Volcan de Jorullo (Humboldt & Bonpland), Real de 

 • Huantla, Iguala, and San Francisco Jetecala (Schiede). 



{/ 29. Bursera lanuginosa, Engler in DC. Monogr. Phanerog. iv. p. 58. 



Elaphrium lanuffinosum, H. B. K. Nov. Gen. et Sp. vii. p. 31. 



South Mexico, near the village of Cuernavaca (Humboldt & Bonpland). 



\y 



