BLAKE: REVISION OF THE AVOCADOS 1 7 



Cruz, April, 1918, Popenoe 830 (S. P. I.). Cultivated, San Anrdes 

 Tuxtla, Vera Cruz, April, 1918, Popenoe 829 (S. P. I.). 



Guatemala: San Augustin, Nov., 1916, Popenoe 741 (S. P. I.). 

 Near Finca Sepacuite, Alta Verapaz, March, 1902, Cook & Griggs 21. 

 Sepacuite, May, 19 14, Cook & Doyle 43. Near Finca Sepacuite, Nov., 

 1916, Popenoe 745 (S. P. I.)- Common wild and cultivated, Tactic, 

 Alta Verapaz, March, 191 7, Popenoe 772, 775 (S. P. I.)- Rare, north 

 bank of Motagua, above El Rancho, Nov., 1916, Popenoe 739 (S. P. I.). 



Costa Rica: Without definite locality, 1905, Werckle. 



Panama: Foot of El Salto Ravine, El Boquete, Chiriqui, altitude 

 1000 to 1300 meters, March, 1911, Pittier 3132. 



This species, incorrectly treated as a variety of P. americana (P. 

 gratissima) by Mez, is readily distinguished by its densely ferruginous- 

 tomentose branchlets, long pedicels, equal perianth-segments, narrow 

 staminode tips, and short style. 



Mr. Popenoe, in the manuscript notes which he has courteously 

 placed at my disposal, has noted the following names for this species: 

 covo and coyocte (at Senahu, Sepacuite, Guatemala), kiyo (San Cris- 

 tobal, Coban), kiyaii (Coban), chucte (El Rancho), chaucte (San 

 Augustin), shucte (Zacapa), kotyo (Chama, Alta Verapaz) . In Mexico 

 it is known as chinini. Mr. Pittier describes the tree from which he 

 collected specimens (no. 3132) as about 50 meters high, 1.2 m. in diam- 

 eter at base, with brownish yellow flowers. The fruits were said to be 

 about 10 cm. in diameter, with a thick mesocarp, and of exquisite flavor. 

 The vernacular name is given as aguacaton. 



According to Mr. Popenoe, the flowers are produced from November 

 to March in Guatemala, and the fruit ripens from July to October. 

 The flowers are pale greenish yellow, turning crimson at base in age, 

 or sometimes light rose, the stamens likewise turning crimson with 

 age. The staminal glands are bright orange. The flowers of P. 

 americana are described by Mr. Popenoe as pale green, not changing 

 color in age. 



The fruit of the coyo (P. schiedeana) is said by Mr. Popenoe to be 

 much like that of the common avocado, and equally variable in ap- 

 pearance and quality. The skin is thick but leathery and pliable, 

 and the flesh of a brownish white color and a fine oily texture, almost 

 always penetrated by fibres. The flavor is much like that of the com- 

 mon avocado, but distinguishable, suggesting that of a ripe coconut. 

 The cotyledons when cut are rose-pink in color, while they are whitish 

 in the avocado. 



Although the type number of Per sea pittieri Mez {Pittier 11 56, 



