Schuette — HatotJiorns <if Northeastern Wisconsin. 95 



long and numerous, as are the flowers and fruits. Flowering the latter 

 half of May. Common. Prefers moist soil on banks and slopes (Com- 

 pare No. 7, below). 



4. Crataegus punctata Jacq. 



A large shrub or usually a small tree, 12-25 feet high and 4-6 inches 

 in diameter, with numerous, nearly horizontal, far-spreading, gray 

 branches and few gray, slender thorns. Leaves obovate to spatulate, acute 

 at apex, cuneate at base, decurrent on the hairy or tomentose, short petiole 

 (in some forms the latter only margined), entire in the lower, irregularly 

 toothed in the upper part, the teeth obscurely glandular or glandless, 

 the nerves hairy underneath. Bud scales brown, but involucral leaves 

 rather large, obovate or spatulate, greenish, brown, or whitish. Stipules 

 and bracts chiefly linear, slender, brown and glandular on the margins, 

 of various forms in sterile shoots. Corymbs compound, with profuse, 

 large flowers. Calyx cup densely hairy or tomentose; sepals entire and 

 glandless, glabrous outside in the upper half. Stamens 12-20; anthers 

 at first whitish, later brown and dark; pistils 3; fruits visually large, 

 globose, reddish or yellowish-green with whitish dots. This conspicu- 

 ous tree with a handsome top is densely covered with white flowers at 

 the end of May and the early part of June. It prefers calcareous and 

 open clay-soil pastures. Common, especially on the peninsula between 

 Lake Michigan and Green Bay. 



Variations from the type are occasionally observed in the form and 

 size of the leaves, the sepals, the glands, degree of pubescence, etc. 

 The variety with shining, thick leaves and with more numerous, rather 

 larger thorns is G. punctata decipiens subsp. nov. (type specimen, No. 

 431,497, U. S. National Herbarium), G. crus-galli is not found in the 

 region under consideration. 



5. Crataegus pyrifoiia Ait. 



A tree with gray ascending branches forming a rather close, somewhat 

 obtuse top. Shoots of the preceding season brown and shining, those of 

 the current year green, later brown; bud scales coriaceous, brown; in- 

 volucral leaves obovate to spatulate, red with a green zone along the 

 margins, glandular; stipules and bracts very fugaceous, mostly filiform 

 or linear, and glandular; leaves broadly elliptic but acute at each end 

 (or ovate or obovate), dull, hairy on the nerves on both faces, the pubes- 

 cence extending down on the upper side of the longitudinal groove of 

 the otherwise glabrous, glandless, margined, short petiole which rarely 

 exceeds one-sixth the length of the blade; teeth of blade glandless or 

 obscurely glandular. Corymb compound, pubescent; calyx cup hairy; 

 sepals almost fimbriately toothed and glandular, glabrous outside; sta- 

 mens usually 12 to 20; anthers red; pistils 2-3; fruits the size of peas, 



