512 Eggleston : Crataegi of Mexico and Central America 



Type, E. Palmer 300, Saltillo, Coahuila, Mexico, Sept., 1898. 

 (Gray Herb.) 



Description of flowers drawn from E. Palmer 2123, Mts. 6 

 miles east of Saltillo, Apr. 15-20, 1880. (Gray Herb.) 



" Garden spots, low hills and little hollows between hills, com- 

 mon. No. 300, hawthorn, prolific bearer of brick-red fruit, edible, 

 sold in the market ; the pulp has an apple taste ; I 5-20 feet high, 

 symmetrical top, rough bark, many long thorns, six inches to one 

 foot in diameter, the seeds are taken out of the top of the fruit, 

 which is cooked in sugar and forms a fine preserve." 



Specimens examined : 



E. Palmer 300. (Gray Herb., herb. N. Y. Bot. Gard., herb. 

 U. S. Nat. Mus., and herb. Arn. Arbor.) 



E. Palmer 704, Saltillo, July 28, 1905. (Herb. N. Y. Hot. 

 Gard. and herb. U. S. Nat. Mus.) 



E. W. Nelson 6j2g, General Cepida, Coahuila, Mexico, Apr. 

 20, 1902. (Herb. U. S. Nat. Mus.) 



Crataegus Nelsoni sp. nov. 



Leaves 1.5-5 cm - long, 1.5-4 cm. wide, elliptical-ovate to obo- 

 vate, acute at the apex, cuneate at the base, serrate or doubly ser- 

 rate, somewhat tomentose below, finely rugose and slightly pube- 

 scent above, subcoriaceous ; petioles less than 5 mm. long, slightly 

 pubescent ; corymbs 3- or 4-fruited, pedicels slightly pubescent ; 

 fruit globose, 10-15 mm - thick, slightly pubescent, stamens about 

 20, calyx-lobes persistent and appressed, entire, slightly pube- 

 scent ; nutlets 4 or 5, grooved on the back, 7-9 mm. long, nest of 

 nutlets 9-1 1 mm. thick. Vegetative twigs somewhat pubescent. 

 Thorns very numerous, 3—5 cm. long. 



Type, E. W. Nelson 3217, near San Cristobal, Chiapas, 

 Mexico, alt. 7000-8800 feet, Sept. 19, 1895. (Herb. U. S. Nat. 

 Mus.) 



New York Botanical Garden 



Bibliography of Mexican and Central American Cratai<;i 

 Beck von Mannagetta, G. Cofoneaster sikkimensis und Crataegus grig- 

 noniensis. Wien. Gart. Zeit. 15 : 248. 1890. 



Bentham, G. Plantae Hartwegianae 10, 173. 1S39. 



Bosc, L. A. G. Nouv. cours. agri. 2: 233. 1821. 



Candolle, A. P. de. Prodromus systematis naturalis regni vegetabilis 

 2 : 626, 628, 629. 1S25. 



