14 BOTANICAL GAZETTE [JANUARY 

CRATAEGUS COCCINEA rotundifolia. —With Crataegus coccinea as 
described above there often grow in the same thickets plants which 
differ from it only in the less development of the hairs on the 
leaves, young branches, and corymbs. Some of these plants are 
entirely glabrous with the exception of a few short hairs on the 
upper surface of the young leaves, while others show all degrees 
of variation in the developement of their villous covering. The 
synonymy of this form, which cannot be considered more than a 
variety, is as I understand it as follows: 
Crataegus rotundifolia Moench, Baume Weiss. 29. A/. 7. 1785. 
Mespilus glandulosa Ebrhart, Beitr. 3:20. 1788. 
Crataegus glandulusa Aiton, Hort. Kew. 2: 168. 1789. 
Crataegus horrida Medicus, Gesch. Bot. 1793. 
Mespilus rotundifolia Du Roi, Harbk. Baumz, 2: 607. 1795. 
Crataegus coccinea Lindley, Bot. Reg. 23: ~/. 7957. 1837 (not Linnaeus). 
Crataegus coccinea macracantha Sargent, Silva N. Am. 4:96. 1892, in 
part, not Lindley. 
Crataegus coccinea rotundifolia is one of the commonest New England 
forms, ranging southward to eastern Pennsylvania, Easton, 7. C. Porter, 
1894, Stroudsburg, W. M7. Canby, 1900, and Delaware, Fairhurst, W. M7. 
Canby, 1900; and westward to the region of the Great Lakes. Its northern 
and western range, however, is still imperfectly known, as there are evidently 
some distinct forms of this group which are still confounded with Crataegus 
coccinea and this variety. All the species of the group, which has been 
curiously overlooked by American botanists, have thick coriaceous dark 
green and lustrous mature leaves, flowers with ten or nearly twenty stamens 
and pale yellow anthers, and globose or subglobose scarlet fruit of medium 
size with three or four nutlets. 
Crataegus Jonesae, n. sp. ( Crataegus coccinea macracantha Rand 
& Redfield, Fl. Mt. Desert Island 98. 1894, not Dudley ).— 
Leaves elliptical, pointed, cuneate and decurrent at the base, 
sharply and doubly serrate and usually lobed above the middle 
with numerous small acute lobes, coriaceous, dark green and 
lustrous above, pale and puberulous below, especially on the 
stout midribs and broad remote primary veins, deeply impressed 
above, 3 to 4 in. long and 2 to 3 in. broad, at first coated above 
with soft pale caducous hairs and glandular with small dark red 
deciduous glands on the teeth; petioles stout, more or less 

