70 MISSOURI BOTANICAL GARDEN. 
Crataegus Parkae, n. sp. 
Glabrous with the exception of the hairs on the young leaves. 
Leaves oblong-obovate to lanceolate, acuminate or rounded and apic- 
ulate at the apex, gradually narrowed to the slender cuneate entire 
base, and finely serrate above the middle, with straight glandular 
teeth; nearly fully grown when the flowers open during the first week 
in May and then thin, villose along the upper {side of the midribs, 
light yellow-green and lustrous above and pale below, and at maturity 
thin, dark yellow-green on the upper surface, pale on the lower sur- 
face, 4.5-5.5 cm. long and 2-2.5 cm. wide, with slender midribs, and 
thin primary veins partly within the parenchyma; petioles slender, 
slightly wing-margined at the apex, about 1 cm. in length; leaves on 
vigorous shoots broadly obovate, acuminate or rounded and apiculate 
at the apex, cuneate at the base, coarsely serrate, often 5-6 cm. long 
and 3-4 em. wide, with stout midribs and prominent primary veins. 
Flowers 1-1.2 mm. in diameter, on long slender pedicels, in small 
compact mostly 12-15-flowered corymbs, their lower peduncles from 
the axils of upper leaves; calyx-tube narrowly obconic, the lobes 
abruptly narrowed from wide bases, long, slender, acuminate, entire, 
reflexed after anthesis; stamens 10; anthers white; styles 2. Fruit 
ripening the end of September, on slender pedicels, in large drooping 
clusters, oblong-ovate, rounded at the base, gradually narrowed and 
rounded at the apex, red, marked by large pale dots, 1-1.2 cm. long 
and 8-9 mm. wide; calyx small, with a short tube, a very narrow 
cavity pointed in the bottom, and spreading lobes, their tips usually 
deciduous from the ripe fruit; flesh thin, dry and mealy; nutlets 2, 
rounded at the base, pointed at the apex, irregularly ridged on the 
back, with a high narrow ridge, about 8 mm. long and 3.5 mm. wide. 
A tree 7 or 8 m. high, with a tall trunk sometimes 3 dm. 
in diameter, covered with rough scaly dark bark, a wide 
round-topped head, and slender nearly straight branchlets 
dark orange-green and marked by pale lenticels when they 
first appear, becoming dull light orange or reddish brown 
at the end of their first season and darker-colored the fol- 
lowing year, and armed with few slender straight chestnut 
brown spines 1.5-3 cm. long. 
Near Springfield, Greene County (J. H. Kellogg, 129, 
type, May 9 and September 23, 1908; 121, May 3 and Sep- 
tember 25, 1908; 727 and 128, with anthers described as 
yellow). 
This plant seems distinct in the remarkably small calyx 
of the fruit with an unusually narrow cavity, and in the 
