165 



dd. Leaflets man ij pairs, always more than 3. 



Z. affine H. B. K. Nov. Gen. et Sp. 6 : 3. 1823. 



Z rigidum H. B. K. ; Willd. Sp. PL 4 : 756. 1805. 



Z. nelsoni Rose, North Am. Fauna, No. 14 : 79. 1899. 



Z. insulare Rose, loc. cit. 



Z. foliolosum Donnell Smith, Bot. Gaz. 18 : 1. 1893. 



Z. pringlei Wats. Proe. Am. Acad. 26 : 134. 1891. 



MISCELLANEOUS SPECIES. 



Casimiroa edulis Llav. & Lex. Nov. Veg. Desc. fasc. 2 : 2. 1825. 



Collected by J. N. Rose at Mazatlan, June 17 to 19, 1897 (No. 3105); at Acaponeta, 

 July 1 to 3, 1897 (No. 3119), and near Colotlan, August 28 (No. 2678). My specimens 

 differ somewhat from our only two herbarium specimens in having normally 5 leaf- 

 lets instead of 3, and these duller, more pubescent, and more tapering at apex. 



The inflorescence of this genus is described by Bentham and Hooker as a few- 

 flowered axillary panicle. My specimens show both axillary and terminal, inany- 

 llowered panicles, 5 to 10 cm. long. 



This plant produces the zapote bianco of tho Mexicans. 

 Citrus medica J,. Sp. PL 2 : 782. 1753. 



A small tree in the foothills, growing as an escape. 



Collected by J. N. Rose near Colomas, July 18, 1897 (No. 1740). 

 Ptelea trifoliata mollis Torr. & Gr. Fl. 1 : 680. 1840. 



Leaflets large. Common on the table-land. 



Collected by J. N. Rose on the road between Huejuquilla and Mesquitoc, August 

 25, 1897 (No. 2580). 



NOTES ON TURNERACEAE. 



Three genera of this order are found in Mexico, viz, Piriqueta, 

 Esblichia, and Turnera. Piriqueta citttoides, the only known Mexican 

 species of the genus, has not been collected in Mexico in recent years. 

 Relating to the other two genera I have the following matter: 



ESBLICHIA. 



Esblichia odorata Seem. Bot, Herald, 130. 1857. 



Collected by Mr. E. W. Nelson near Chicharras, in the State of Chiapas, February 

 12 to 15, 1896 (No. 3803). 



A tree 40 to 50 feet high. 



This plant has not before been reported from Mexico, having been known only 

 from Panama and there but once collected. 



This species is figured in Botany of the Herald as t. 27. Mr. Urban refers this 

 genus to a section Piriqueta, from which, however, it appears to be quite distinct. 



TURNLRA. 



The following species, sent for identification or otherwise contributed, 

 have been recently added to the National Herbarium: 



Turnera palmeri Wats. Proc. Am. Acad. 22: 113. 1886. 



Collected by J. N. Lose near Huejuquilla, .Jalisco, AuguBt 24, 1897 (No. 3562). 



This plant was frequently seen on the table-lands. It has heretofore been reported 

 only from near Guadalajara, Jalisco, the type having been collected by Dr. K. 

 Palmer in 1^85 and since obtained by Mr. Pringle and P. L. Jouy. In the original 

 description the leaves are said to lie eulandular, but this is a mistake. 



This species must be near T, callosa. 



