r 



TREES AXD SHRUBS. 



CRATAEGUS PEKKCUIXA. Sakc. 



Crataegus peregrin a, n. sp. 



Leaves ovate, acuminate, abruptly euneate at the broad base, slightly doubly serrate with strai-ht 

 glandular teeth, and divided into 5 or 6 pairs of narrow acuminate lateral hil.es ; mure than halt- 

 grown when the flowers open and then thin, yellow-green and roughened above by short white 

 hairs and densely coated below with hoary tomentum, and at maturity thin, dark "vellow-.rreen. 

 smooth and glabrous on the upper surface, paler and villose on the lower surface, especially on the 

 slender midribs, and primary veins extending obliquely to the points of the lobes, from 5 to 7 

 centimetres long and from 3.5 to 6 centimetres wide; petioles slender, coated with long matted 

 pale hairs persistent through the season, from 2 to 3.5 centimetres in length ■ stipules foliaeeous 

 acuminate, glandular-serrate, falcate, mostly persistent until alter the petals fall ; leaves on vigorous 

 shoots ovate to oblong-ovate, acute or acuminate, rounded, abruptly ouneate oi truncate at the 

 broad base, often from 8 to 10 centimetres long and from G to 8 centimetres wide. Flower* 

 from 1.8 to 2 centimetres in diameter, on short stout densely villose pedicels, in compact hairy 

 mostly from 15- to 20-flowered corymbs, their bracts and bractlets oblong-ohovate, acuminate, 

 glandular-serrate, scarious, early deciduous ; calyx-tube broadly obconic, thickly coated with pale 

 hairs, the lobes short, nearly triangular, entire or occasionally glandular-serrate near the middle. 

 densely villose on the outer surface, slightly villose on the inner surface, reHexed after anthesis ; 

 stamens 20; anthers pale yellow; styles 5 or rarely 6, surrounded at the base by a narrow ring 

 of short pale hairs. Fruits on slender villose pedicels, in many-fruited drooping clusters, broadly 

 ovate, narrowed and rounded at the tomentose apex, rounded and pubescent at the base, dark 

 dull purple marked by small pale dots, about 1.5 centimetres long and nearly as broad ; calyx 

 slightly enlarged, with a short tube, a deep narrow cavity pointed and tomentose in the bottom, 

 and erect lobes more or less incurved above the middle, tomentose on the outer surface and dark 

 red on the inner surface; flesh thick, succulent, yellow, slightly tinged with red, of good flavor; 

 nutlets 5 or rarely 6, gradually narrowed and rounded at the ends, thicker at the apex than at the 

 base, rounded and irregularly ridged or slightly grooved on the back, from 5 to (> millimetres long 

 and from 4 to 4.5 millimetres wide, the narrow conspicuous hypostyle extending to the middle 

 of the nutlet. 



A shrubby tree, 4 or 5 metres high, with a stem 2 decimetres in diameter, erect branches and 

 stout only slightly zigzag branchlets marked by large pale lenticels, thickly coated when they first 

 appear with matted white hairs, becoming during their first season light chestnut-brown, lustrous, 

 and sparingly villose and dull gray-brown the following year, and armed with straight slender 

 chestnut-brown spines from 1.5 to 2 centimetres long. Flowers from the 1st to the middle of May. 

 Fruit ripens from the middle of August and remains several weeks on the branches before falling. 



The native country of this plant is unknown to me. It was raised at the Arboretum from seeds received from the 

 Imperial Botanic Garden at St. Petersburg in 1880 as C. melanocarpa. It differs from that species in the shape 

 of the more hairy leaves, in its larger flowers, in the color of the anthers and in the color of the much larger and early- 

 ripening fruit. In foliage it resembles some of the forms of Crataegus nigra Waldstein & Kitaibel, and the inflores- 

 cence of the two plants is not unlike, but the small globose black fruits of Crataegus nigra are entirely unlike those of 

 C.peregrina. The color of the fruit resembles that of Crataegus Lamhertuxna Lange, but the leaves of that species 

 are glabrous. Crataegus peregrina appears to be a true Mollis, and is therefore particularly interesting as the only 



