Crataegus Rosaceae 543 



10a. Crataegus Margaretta var. angustifolia Palmer, var. nov. 1 Leaves 

 oblong-lanceolate or lance-elliptic, 1-3 cm long, 0.8-2 cm wide, acute or 

 acuminate at the apex, abruptly narrowed or acuminate at the base and 

 decurrent on the slender petioles, which are a half to two thirds as long 

 as the blades. Flowers and fruit like those of the typical form. 



Found in northern Indiana in Elkhart and Lagrange Counties. 



Specimens examined : Deam no. 38534, a quarter of a mile east of Bristol, 

 Elkhart County (type), May 25 and September 12, 1923; Deam no. 15660, 

 1 mile north of Howe, Lagrange County. Type in herbarium of the Arnold 

 Arboretum. 



10b. Crataegus Margaretta f. xanthocarpa Sarg. This form differs 

 from the typical form in having bright or pale yellow fruit. Our only 

 specimen is from Grant County. 



11. Crataegus intricata Lange. (Crataegus meticulosa Sarg.) Map 

 1111. Leaves ovate or elliptic, mostly 3-6 cm long, 2.5-5 cm wide, acute 

 at the apex, rounded or abruptly narrowed at the base, slightly decurrent 

 on the slender (1-3 cm long), glandular petioles, coarsely serrate nearly 

 to the base, usually incised on the upper two thirds of the blades with 2-4 

 pairs of shallow, steplike, lobes, thin but firm in texture, glabrous or 

 essentially so, though sometimes with a few hairs on the upper surface 

 when young; flowers 12-16 mm in diameter, in few-flowered, simple, 

 corymbs, usually much exceeded by the subtending leaves ; stamens about 

 10 ; anthers cream white or pink ; bracts and calyx lobes glandular ; fruit 

 oblong or pyrif orm, or sometimes nearly globose but attenuate at the base, 

 bronze green or becoming dull red at maturity; fruiting calyx broad and 

 prominent; nutlets usually 3-4. 



A straggling shrub 1-3 m high with dark gray, scaly bark, ascending or 

 spreading branches, and slender branchlets usually armed with long, 

 slender thorns. 



Uncommon and scattered in northern Indiana, and known only from 

 Kosciusko, Lagrange, and Lawrence Counties. 



Vt. to Mich., south w. to Va. and Ind. 



12. Crataegus rubella Beadle. (Crataegus pygmaea Sarg. and Cra- 

 taegus meticulosa Sarg. of Deam, Shrubs of Indiana, ed. 2. pi. 60. 1932.) 

 Map 1112. Leaves mostly elliptic or oblong-lanceolate, 2.5-7 cm long, 

 1.5-4.5 cm wide, pointed or acuminate at the apex, cuneate or attenuate at 

 the base, sharply serrate nearly to the base, obscurely lobed with 3-5 pairs 

 of small, shallow lobes, or sometimes nearly entire, thin but firm at ma- 

 turity, glabrous, yellow green ; petioles slender, a fourth to half the length 

 of the blades, glandular; flowers 18-22 mm in diameter, mostly 3-6, in 

 compact, simple corymbs, on glabrous, glandular pedicels; bracts con- 

 spicuously glandular; stamens about 10; anthers pink or rose color; fruit 

 oblong-obovoid or pyriform, 9-12 mm thick, 10-14 mm long, bright red or 

 orange red at maturity ; nutlets usually 3-5. 



1 A typo differt foliis oblongo-lanceolatis vel elliptico-lanceolatis, 1-3 cm longis, 

 0.8-2 cm latis. 



