Pomona College Journal op Economic Botany. 341 



order of afifinities, that is, from palms, conifers, etc., at the base up to Sapo- 

 taceae, Bignoniaceae, etc., at the top. About 700 species will fiud place 

 here. 



In a small enclosure of about 100 square meters, and well sheltered by 

 groves of native shrubbery, the apiary of the Experiment, Station was 

 recently installed, quite appropriately, in view of the mutual interdependence 

 of bees and flowers. 



It remains for me to illustrate the geographical department, which 

 reproduces in its main lines the political map of the State of Oaxaca. It 

 is my most intense desire to make known as well and as completely as 

 possible the vegetal wealth which is typical of our state. As far as botanic 

 science is concerned, it is safe to say that the State of Oaxaca has been 

 but scantily explored. When, to this circumstance, is added the wide 

 expanse of its area, and the great variability of its climate, owing to its 

 very high ranges of mountains, and deeply sunken valleys, with corres- 

 ponding, widely diverging extremes of atmospheric pressure, this country 

 cannot help being a particularly interesting botanical region. In this 

 geographical department there are represented already the most prominent 

 features of our native flora. 



The extreme ea.stern side corresponds to the district of Juchitan, and 

 offers a collection of 108 species of Cactaceae, mostly of the genus Opuntia, 

 with representatives also of Cercus, Echinocactus, and Mammillaria, which 

 are so plentiful in that region of the isthmus. 



The extreme northwestern side, corresponding to the district of Huajua- 

 pan de Leon and of Silacayoapan, displays already a small collection of 

 Agave, Beaucarnea, Hechtia and Yucca. This is sure to be much increased. 



Prom the central districts the most characteristic conifers of our state, 

 Abies religiosa, Pinus montezuma^ Juniperus flaceida, etc., will be repre- 

 sented, the nucleus consisting of a fine specimen of Taxodium mucronatum, 

 planted on July 1st, 1910, and raised from seed which I gathered myself on 

 the colossal and historic "sabino" of Santa Maria del Tule. 



From the southern coa.st districts of Tehuantepec, San Carlos, Pochutla, 

 Juquila, and Jamiltepec, the most conspicuous palms and cycads of our 

 state will be represented, nearly all belonging to the genera Acroeomia, 

 Chamaedorea, Zamia, Dioon and Ceratozamia. 



In this same department, room will be reserved for special groups of 

 economic and of morphological interest, to be set out in due time. 



I must not fail to mention the lake for the proper cultivation of 

 aquatic plants, which will be sup[)lied with running water from the Rio de 

 San Antonio, by means of an electric pump. 



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