Il8 NEW YORK STATE MUSEUM 



acute at the base, ridged on the back, with a broad high grooved 

 ridge, 6-6.5 ^"^ ^ong, and 4.5-5 mm wide. 



An arborescent shrub 5-6 m high, with numerous Hght ashy gray 

 stems sometimes 1.3-1.5 dm in diameter, spreading and drooping 

 branches, and slender shghtly zigzag branchlets dark orange-green 

 and marked by pale lenticels when they first appear, becoming light 

 chestnut-brown and lustrous in their first season and dull gray- 

 brown the following year, and armed with numerous slender often 

 recurved chestnut-brown shining spines 3.5-4.5 cm long. 



Moist soil in dense thickets, near the east bank of Hemlock lake, 

 Livingston co., Henry T. Brown (^22, type). May 28 and October 

 16, 1906. 



TENUIFOIrlAE 



Crataegus leptopoda n. sp. 



Glabrous with the exception of the hairs on the upper surface 

 of the young leaves and petioles. Leaves oblong-ovate, grad- 

 ually narrowed at the base, finely often doubly serrate, with straight 

 glandular teeth, and slightly divided into 6 or 7 pairs of narrow 

 acuminate spreading lobes; about half grown when the flowers open 

 in the last week of May and then very thin, yellow-green and 

 slightly roughened above by short white hairs and pale below, and 

 at maturity thin, smooth and dull dark yellow-green on the upper 

 surface, paler on the lower surface, S-y cm long and 3.5-4 cm wide, 

 with slender midribs and primary veins ; petioles very slender, 

 slightly wing-margined at the apex, sparingly hairy on the upper 

 side while young, soon becoming glabrous, glandular, with minute 

 often persistent glands, 2-3 cm in length. Flowers about 1.5 cm 

 in diameter, on long slender pedicels, in mostly io-12-flowered 

 narrow cor5rmbs, the elongated lower peduncles from the axils of 

 upper leaves ; caiyx-tube narrowly obconic, the lobes gradually nar- 

 rowed from the base, long, slender, red and glandular at the acumi- 

 nate apex, entire or minutely glandular dentate near the middle, 

 reflexed after anthesis ; stamens 5-10 ; anthers dark red or maroon ; 

 styles 3 or 4, surrounded at the base by a narrow ring of pale 

 tomentum. Fruit ripening late in September, on long slender 

 drooping pedicels, in few-fruited clusters, obovate, rounded at the 

 apex, gradually narrowed at the base, bright cherry-red, lustrous, 

 marked by small pale dots, 1-1.2 cm long, and 8-9 mm in diameter ; 

 calyx little enlarged, with a shallow narrow cavity and erect or 

 incurved persistent lobes dark red on the upper side below the 

 iniddle; flesh thin, yellow-green and juicy; nutlets 3 or 4, acuminate 



