110 



Collected by Dr. Edward Palmer near Acapulco, March, 1805 (No. 020). 



This species was originally collected near Acapulco, by Humboldt and Bonpland, 

 and was afterwards obtained there by Lay and Collie. 



Mr. Nelson has collected the species in the State of Oaxacaat the following places: 

 valley about Cuicatlan, altitude 590 meters, November 3, 1894 (No. 1863) ; Jamiltepec 

 to Rio Verde, altitude 131 to 328 meters, February 21, 1895 (Nos. 2373 and 2371). 



It has not heretofore been represented in the National Herbarium. 



This appears to be Tontellea hookeriana Miers and I'rislimcra teneUa Miers. 

 Hippocratea mexicana Miers, Trans. Linn. Soc. 28: 352. 1872. 



Sometimes a tree 7.5 to !> meters high, with trunk 20 cm. in diameter. 



Collected by Dr. Edward Palmer near Acapulco. February and March, 1895 (Nos. 

 430, 584, and 588). 



We have seen no named specimens of //. mexicana, Mr. Hemsley has referred this 

 species to //. nnifloru DC. 



The identification of the above two species is not at all satisfactory. 

 Perrottetia longistylis Rose, sp. now 



Loaves oldong, 12.5 to 15 cm. long, long-acuminate, enneate at base, coarsely toothed ; 

 inflorescence puberulent; sepals narrow, acute; petals ovate, eiliate; style elongated, 

 enlarged at base, 2-lobed. 



Collected by Boargean in Izbuatlancillo near Orizaba, 18ti5-li (No. 2827). 



This plant is referred to /'. quhidiuenxix by Mr. Hemsley in the Biologia Centrali- 

 Americana, but that species came originally from South America and besides has 

 glabrous petals, stamens shorter than the petals, and the style very short. 



Bourgeau's plant is perhaps nearer /'. orata, from which it differs in its larger, 

 more acuminate leaves, less eiliate petals, and longer and thicker style. 

 Perrottetia ovata Ilemsl. Diag. PI. Nov. 1:6. 1878. 



Collected by Mr. E. W. Nelson from near Toton tepee, Oaxaca, altitude from 1,217 

 to 1,808 meters, July 15 to 20, 1891 (No. 786); also from about Tumbala, Chiapas, 

 altitude 1.312 to 1,807 meters, October 20 to 29, 1895 (No. 3354). 



My material, while presumably of this species, has the leaves oblong rather than 

 broadly ovate. Only the male flowers have been described. The female flowers 

 may be thus characterized: Sepals and petals as in the male flowers, ovary glabrous, 

 stylo short, stigma two-parted, fruit broader than high. 1-lobed. 

 Perrottetia glabrata Rose, sp, no v. 



A shrub 21 to !J0 dm. high, nearly glabrous; leaves oblong, shortly acuminate, 

 glabrous, excepting veins and petiole, or becoming glabra to, rounded at base, sharply 

 and finely serrate, 7.5 cm. or less long, 3.7 to 5 cm. wide, pale beneath; intloresceuco 

 glabrous throughout; petals small, slightly eiliate; stamens long. 



Collected by K. \V. Nelson on Mt. Orizaba, altitude l,(i07 to 2,460 meters, March 

 18, 1894 (No. 313). Here seems to belong Harris's plant which Mr. Hemsley referred 

 to his P. ovata in the Biologia Centrali-Aniericana. /'. ovata differs from the above 

 species in the reddish pubescence of the inflorescence, the densely eiliate petals, 

 coarser-toothed leaves, etc. 



NOTES ON RUTACEAE. 



ESENBECKIA 



The genus Esenbeckia is said by Bentham and Hooker to contain 

 about 22 species confined to South America and the West Indies. Mr. 

 Hemsley in Ins enumeration of Mexican plants' reports a single species, 

 E. berlandieri. In addition to my two new species described below, 

 two others have recently been described, viz: E. Jiava and E. hart- 



1 l>iol. Centr. Amer. 1 : 170. 



