CRATAEGUS IN ROCHESTER, NEW YORK. 99 



slig^htly serrate, reflexed after anthesis ; stamens 20 ; anthers small, 

 red ; styles 3 or 4. Fruit on slender rigid reddish pedicels, in erect 

 few-fruited clusters, ovate to oblong, . full and rounded at the ends, 

 dark crimson marked by occasional small pale dots, slightly pruinose, 

 I- 1. 2. cm. long, 8-10 mm. wide ; calyx prominent with a long calyx- 

 tube, a deep narrow cavity, and spreading and closely appressed 

 lobes, entire or slightly serrate toward the apex, dark red on the 

 upper side near the base ; fiesh thin, yellow, dry and mealy ; nutlets 

 3 or 4, full and rounded at the obtuse ends, ridged on the broad 

 rounded back, with a low narrow ridge, 6 mm. in length. 



A slender tree sometimes 7 or 8 m. in height, with a trunk 

 branching one or two feet from the ground, and 1.5-2 dm. in diam- 

 eter, and covered with ashy gray bark, small horizontal and ascending 

 branches usually forming a broad symmetrical head, and slender ziz- 

 zag branchlets dark green tinged with red and marked by large 

 oblong pale lenticels when they first appear, bright red-brown and 

 lustrous at the end of their first season, becoming dark gray-brown 

 the following year and armed with many slender straight chestnut-brown 

 or purplish shining spines 1.5-3 cm. in length, long persistent and 

 occasionally compound. Flowers the first of June. Fruit ripens 

 toward the end of October and does not entirely fall before the end 

 of another month. 



Rochester, C. S. Sargent and John Dimbar, October 15, 1901, 

 September 24, 1902 ; Adams Basin, New York, M. S. Baxter, May 

 29, 1902; Buffalo, John Dunbar, October 6, 1902; Murray, M. S. 

 Baxter, June i, 1902. 



This species is named for William Harvey Lennon, teacher of 

 natural sciences in the Normal School at Brockport, New York, and 

 a careful and enthusiastic student of the flora of Monroe County. 



Crataegus leiophylla, n. sp. 



Glabrous with the exception of a few hairs on the upper side of 

 the midribs of young leaves. Leaves broadly ovate, acuminate, 

 rounded, truncate or rarely cuneate at the wide entire base, sharply 

 and doubly serrate above, with straight glandular teeth, and divided 

 into four or five pairs of narrow acuminate spreading lateral lobes ; 

 bright red as they enfold and about half-grown when the fiowers open, 

 and then thin and light yellow-green more or less tinged with red ; at 

 maturity thick and firm in texture, dark dull blue-green on the upper 

 surface, light yellow-green on the lower surface, 5-6 cm. long and 



