Dec. 1896. Flora of Yucatan — Mii.lspaugh. 283 



not bloom at all, and many that did flower never came to fruit. His 

 collection, however, contained about 600 numbers, obtained mostly in 

 the neighborhood of Izamal, in the interior, and at the town and port 

 of Silam, on the northern coast. This collection so far as classified, 

 forms the basis of this publication, which also includes a century of 

 medicinal plants communicated for determination by Prof. H. H, 

 Rusby of New York, having been collected by one of his pharmaceutical 

 students, Sr. Porfirio Valdez of Merida*; a collection made by the 

 author at Progreso, Merida, and Tikul in 1887; and a few plants of 

 the Allison V. Armour Expedition of 1895 that had not been satis- 

 factorily determined at the time of the first contribution. 



The complete set was taken to the Gray Herbarium and there 

 compared with the collections of that institution. The arduousness 

 of this work was materially lessened by the many kindnesses of the 

 director, Prof. B. L. Robinson, and of his staff, Mr. J. M. Greenman, 

 Mr. Merritt L. Fernald, and Miss Day, to each of whom, together 

 with the specialists credited in the body of this publication, the hearty 

 thanks of the author are due. 



As in the first contribution all species»not before credited to the 

 region, appear in black-face type. Species in small capitals are 

 those re-discovered. The Yucatec and Spanish vulgarisms appear in 

 italics, the Maya in black face. Plant numbers in the body type are 

 those of Dr. George F. Gaumer, 1895. This contribution adds one 

 hundred and twenty genera, and two hundred and seventy-two species 

 to our knowledge of the flora of the peninsula, of which one genus 

 and thirteen species are new. 



From the serial plant numbers of Dr. Schott during the Yucatan 

 portion of his Central American trip, it is evident that he collected 

 at least 900 plants in this region. These plants were deposited in the 

 herbaria of London and Washington, where they were distributed 

 without specific classification or study, and only appear now and then 

 in the works of special monographers. As his plants are of vital in- 

 terest to our work, they are being searched for and embodied in these 

 contributions as found. 



*The economic characters of the Valdez collection will be published by the author in one of the 

 botanical monthlies. 



