234 ■ Mr. W. B. Hemsley. On the Julianiacece, [June 6, 



time have brought back specimens, and this year was especially fortunate in 

 collecting near the type-locality both male and female plants. In looking 

 up the subject since my return I find that you have anticipated me and 

 have published two very beautiful plates and some interesting notes. . . . 

 There are, however, more than two species in Mexico. I have certainly 

 four well-marked species and possibly six. . . . With regard to the 

 position of this genus, I think it must be regarded as the type of a new 

 order. I do not think it has any relationship to either Burseracese or 

 Anacardiaceae. My conclusions in the field were that it must be closely 

 related to Juglandaceae, a relationship which you also suggest." 



In this communication Dr. Eose most generously offered to send all his 

 specimens and notes to me, leaving it to my judgment in what form 

 publication should be effected. I gladly accepted, and through the kindness 

 of the Trustees of the Bentham Fund, Miss M. Smith made an elaborate 

 series of drawings under my direction. As there were still some structural 

 points on which we were not quite clear, and Dr. Rose contemplated another 

 visit to Mexico, it was decided to publish at once a description of the genus, 

 as then understood, and brief diagnoses of the species. 



III. — Geographical Distribution. 

 1. Juliania. 



So far as at present known, Juliania is confined to Mexico, and the 

 various species occur in isolated localities between about 17° 40' and 

 23° N. lat., and 97° and 104° W. long., and at altitudes of about 1500 to 

 5500 feet. 



2. Orthopterygium. 



The habitat of the Peruvian Orthopterygium Huaucui is 2000 miles 

 distant from the nearest locality of any species of Juliania. The exact 

 position of the only place in which it has been found cannot be given, but it 

 is in the Province of Canta, in the Department of Lima, between 11° and 

 12° S. lat. 



IV. — The Affinities of the Julian iace,e. 



During the six years that I have had this small group under observation 

 I have had opportunities of showing the specimens and drawings to many 

 of the leading botanists of the world, and all agree who have seen them that 

 it deserves to rank as an independent order. That being so, the question of 

 its position arises, but that is a point not so easily settled in a linear arrange- 



