Floristice work. — Central America. 33 
dried plants for the U. S. National Herbarium. CHARLES F. MILLSPAUGH 
visited Yucatan making large collections, a report of which has appeared as 
Plantae Yucatanae, publications of the Field Columbian Museum. — J. N. Rose 
has published extensively on ‚Mexican plants. He has made at least three 
trips to the South and has returned enriched by botanic material. The results 
of these trips have appeared in the Contributions from the United States 
National Herbarium and elsewhere. — WILLIAM TRELEASE has been in Mexico 
twice in the interests of the herbarium of the Missouri Botanical Garden and 
in the furtherance of his studies on the genus Yucca. A report of one hundred 
and thirty-three pages and ninty-nine plates on the Yucceae was published 
in the Report of the Missouri Botanical Garden for 1902. — J. HARSHBERGER 
accompanied C. G. PRINGLE for a month in the exploration of the Valley of 
Mexico and the ranges of mountains thereabouts during August and September 
1896, his collections being distributed to herbaria in Philadelphia, Cambridge, 
Washington, while a paper on the flora of the Valley of Mexico appeared 
in the Proceedings of the Academy of Natural Sciences of Philadelphia for 
1898. — ANGELO HEILPRIN and WITMER STONE collected in Mexico around 
and on the high volcanoes of Orizaba and Popocatepetl. Heilprin gave the 
results of the trip in a brochure entitled the Temperate and Alpine Floras of 
the Giant Volcanoes of Mexico, printed in the Proceedings of the American 
Philosophical Society in 1892. Their plants are in the Herbarium of the 
Academy of Natural Sciences of Philadelphia. 
The coterie of Mexican botanists, who have been most active in extending 
the botanic knowledge about their country, are FERNANDO ÄALTIMIRANO, JOSE 
N. RovIRosA, J. ELEUTERIO GONZALEZ, IGNACIO OCHOA VILLAGOMEZ, NICOLAS 
LEON, Jost SEGURA, MARIANO BARCENA, .ALFONSO HERRERA, JosE RAMIREZ, 
MANUEL URBINA. Their papers have appeared in a number of journals pro- 
minently La Naturaleza and Anales Instituto Medico Nacional. A good her- 
barium is maintained in the building of the Medical Institute in the City of 
Mexico. s 
In concluding this short account of the history of Mexican botany MEN 
of must be made of W. BorrınG HEMSLEY of Kew, who has published in je 
volumes the botany of the Biologia Centrali-Americana of Godman es 
Salvin; of ERNST Stau of Jena and G. KARSTEN, who in 1894 explore 
parts of Mexico, returning to Germany by way of the United States, 
i IX. Central America. 
A number of the botanists mentioned above in connection with the en 
of Mexican botany explored Central America. However, it is well to briefly re es 
0 those naturalists who explored Central America and to whom 4 r 2 
debted for our botanic knowledge of that region. The voyage of ee 
Sulphur” under Captain Sir EDWARD BELCHER touched at Panama, the Islanc 
of Tobago, the Gulf of Nicoya, Costa Rica and Nisaragın. DIEBE 
fions of dried plants were afterwards studied by GFORGE BENT =; | 
” a Harshberge r, Survey N.-America, 
