196 JOURNAL OF THE ARNOLD ARBORETUM [vol. hi 



slender villose pedicels in small compact mostly 5-7-flowered corymbs, 



densely villose like the narrow obconic calyx-tube; calyx-lobes slender, 



acuminate, entire or minutely and irregularly glandular-serrate, pubescent 



on the outer surface, densely villose on the inner surface, deciduous from 



the ripe fruit; stamens 5-10; anthers yellow; styles 3-5. Fruit ripening 



early in October, on more or less densely villose erect pedicels in small 



clusters, globose, bright red, 1-1.4 cm. in diameter, slightly pubescent 



with a ring of white hairs surrounding the little enlarged calyx composed 



of a short tube and a deep narrow cavity pointed in the bottom, flesh 



thick and dry; nutlets 3-5, gradually narrowed and rounded at the ends, 



slightly ridged on the back, 4-5 mm. long and 3-4 mm. wide, the broad 



conspicuous hypostyle extending to below the middle. 



A shrub 3-4 m. high, with a stem covered with thin scaly bark, and 



slender nearly straight branchlets thickly covered when they first appear 



with matted pale hairs, light orange-brown and slightly hairy at the end 



of their first season and ashy gray and glabrous the following year, and 



armed with numerous slender straight gray spines 3-5 cm. long. 



Texas. Uvalde County, foot of the bluff of the Sabinal River, Utopia, 

 E. J. Palmrr, No. 11525, April 10, 1917, No. 12946 (type), October 7, 1917. M e- 

 nard Countv, low woods on the San Saba River, Menard, E. J. Palmer, No. 

 11889 (sterile branches only), May 12, 1917. 



Distinct from the northern species of the Mollis Group in its small 

 leaves, flowers and fruit and shrubby habit, this Texas shrub changes 

 earlier conceptions of this Group. 



Another species of the Mollis Group from western Texas with generally 

 smaller less sharply serrate more pubescent leaves, flowers with 5-10 

 stamens, and rose-purple or pink anthers, and smaller fruit covered early 

 in the season with short pale hairs but without the ring of white hairs 

 at the base of the calyx with a wide shallow cavity and persistent lobes, 

 is until that species is better known referred to C\ Greggii Eggleston from 

 the neighborhood of Saltillo, Cohuila, Mexico. As this species grows in 

 Texas it is a tree 12 feet high which has been found on the bluffs of 

 the Guadalupe River below Kerrville, Kerr County, B. Mackensen, No. 

 7, May 1, 1910, No. 1, April 13 and September 21, 1913, No. 2. April 13, 

 1913, No. 253, September 21, 1913, No. 4, September 21, 1913, No. 20 

 (same tree as No. 4), April 21, 1914; E. J, Palmer, No. 9922 (1), May 29, 

 1916, No. 10882, October 2, 1916, No. 11497, April 8, 1917. 



A specimen with immature fruit collected by E. J. Palmer (No. 101 (iiJ) 

 on the bank of the Frio River near Leaky, Real County, June 11, 191(5, 

 and a specimen collected by him (No. 10899) at Junction, Kemble County, 

 October 6, 1916, are also doubtfully referred to C. Greggii. 



Crataegus rotundifolia var. aboriginum (§ Rotundifoliae), n. var. 



Crataegus aboriginum Sargent in Rhodora, v. 164 (1903). 



Differing from C. rotundifolia Moench in its large obovate or ovate 

 eaves acute or rounded at apex, up to 7-10 cm. long and 5-8 cm. wide, 



