54 Rhodora [FEBRUARY 
$ PRUINOSAE. 
* Stamens 20. 
+ Anthers rose color or lilac. 
CRATAEGUS PRUINOSA, K. Koch. Sargent, Siva N. Am. xiii. 61, 
t. 48. 
Colonies of this widely distributed species differing from the type 
only in rather longer calyx-lobes and in smaller duller colored fruit 
were found last year in North Lancaster and Shirley, Massachusetts, 
by Mrs. John E. Thayer. 
Crataegus festiva, n. sp. Glabrous. Leaves broadly ovate, 
acute, full and rounded, concave-cuneate or rarely subcordate at the 
entire base, coarsely and mostly doubly serrate above, with straight 
teeth tipped with large red glands, often irregularly divided into 
short lateral lobes; tinged with red as they unfold, and about half- 
grown and light green when the flowers open, at maturity membrana- 
ceous, dark bluish green on the upper surface, pale yellow-green on 
the lower surface, 5-8 cm. long, 4-6 cm. wide, with stout light 
yellow midribs deeply impressed on the upper side and often tinged 
with red below near the base, and 4 or 5 pairs of thin obscure pri- 
mary veins extending obliquely to the points of the lobes; petioles 
slender, sparingly glandular, 2-2.4 cm. long; stipules linear, glandu- 
lar-serrate, caducous; on leading shoots leaves oblong-ovate, acute 
or acuminate, broadly concave-cuneate and narrowed below into 
stout wide-margined petioles, 3-lobed with broad acute lobes, the 
lateral lobes much smaller than the terminal lobe, sometimes 7—8 cm. 
long and broad, their stipules foliaceous, lunate, irregularly and 
coarsely glandular-serrate, 1.5-1.8 cm. long, persistent. Flowers 
2.6-2.7 cm. in diameter when fully expanded, on slender pedicels, 
in broad many-flowered thin-branched compound corymbs; bracts 
and bractlets oblong-obovate to linear, acute, glandular-serrate, cadu- 
cous; calyx-tube broadly obconic, the lobes abruptly narrowed from 
broad bases, acute, prominently nerved, slightly serrate above the 
middle, with small glandular teeth, or nearly entire, reflexed after 
anthesis; stamens 16—20 ; anthers large, deep rose color; styles 3-5. 
Fruit erect in few-fruited clusters, subglobose, dull red, pruinose, 
10-11 mm. in diameter; calyx prominent, sessile, with a broad deep 
cavity, and enlarged acuminate often coarsely serrate spreading or 
erect lobes; flesh thin, dry and hard, insipid to the taste, greenish 
white; nutlets usually 3, acute at the ends, rounded and occasionally 
slightly ridged on the back, 6-7 mm. long. 
A shrub r-2 m. high, with numerous intricately branched stems 
covered with dark gray bark and rarely more than 5 cm. in diameter, 
