TREES AND SHRUBS. 



CRATAEGUS RTTBICUNDTTLA, Sabg. 



Crataegus rttbicundula, n. sp. 



Glabrous with the exception of a few hairs on the upper surface of the young leaves. Leaves 

 broadly ovate, acuminate, rounded, truncate, subcordate or abruptly cuneate at the entire base, 

 coarsely doubly serrate above, with straight glandular teeth, and divided into four or five pairs 

 of broad acuminate lateral lobes ; slightly tinged with red when they unfold, not more than one 

 third grown when the flowers open and then membranaceous, yellow-green, and nearly glabrous, 

 and at maturity very thin, dark blue-green and smooth on the upper surface, pale on the lower 

 surface, from 6 to 8 centimetres long and usually as broad or broader than long ; petioles 

 slender, slightly wing-margined and glandular at the apex, from 3.5 to 6 centimetres in length ; 

 stipules linear, glandular-serrate, fading brown, often persistent until the flowers open. Flowers 

 from 2 to 2.5 centimetres in diameter, on slender pedicels, in compact two to seven usually four 

 or five-flowered corymbs, with narrow obovate to linear glandular bracts and bractlets, the lowest 

 peduncle from the axil of an upper leaf ; calyx-tube broadly obconic, the lobes gradually 

 narrowed from wide bases, short, acuminate, minutely glandular-dentate, reflexed after anthesis; 

 stamens twenty; anthers pink; styles five, surrounded at the base by a narrow ring of long 

 white hairs. Fruit on long pendulous stems, in two or three-fruited clusters, subglobose but 

 usually rather broader than high, green, pruinose, finally becoming tinged with red, marked by 

 large pale dots, from 1.3 to 1.4 centimetres in diameter ; calyx without a tube, with a deep wide 

 cavity, and spreading and appressed often deciduous lobes; flesh thick, yellow-green, dry, and 

 mealy; nutlets five, thin, narrowed and acute at the ends, slightly ridged or rounded and 

 grooved on the back, from 6.5 to 7 millimetres long and from 4.5 to 5 millimetres wide. 



A shrub, from 2 to 3 metres high, with small stems spreading into thickets, and slender nearly 

 straight branchlets light red-brown when they first appear, becoming chestnut-brown and lustrous 

 in their first season and dull red-brown the following year, and armed with very numerous 

 slender straight or slightly curved purple shining spines from 3 to 6 centimetres long. Flowers 

 appear during the first week of May. Fruit ripens the end of October. 



Bottom-lands of the Desperes River in oak woods at Carondelet, South St. Louis, Missouri, 

 II Eggert, October 12, 1886, J. H. Kellogg, November 19, 1902, May 7, 1903 (No. 9 type). 



This shrubby species is well distinguished by its very broad large leaves, and by its large fruit broader than high and 

 larger than that of any of the described species of this group. 



