CLASS XXI. ORDER VIII. 383 



CoRYi.us RosTRATA. Alt. Beaked Hazel. 



Leaves oblong-ovate, acuminate; stipules linear- 

 lanceolate; calyx of the fruit campanulate-tubular, 

 longer than the nut, two parted, with toothed segments. 



A smaller shrub than the foregoing. Leaves ovate or obovate, 

 somewhat hearted, unequally and sharply serrate, downy under- 

 neath. Calyx inclosing the nut, densely hispid, round at base, 

 contracted like a bottle into a long, narrow neck which is cut and 

 toothed at the extremity. — Sudbury. — May. 



394. CARPIIMUS. 

 Carpinus Americana. Willd. Hornbeam. 



Leaves oblong-ovate, acuminate, unequally serrate; 

 calyx of the fruit three parted, the middle segment 

 oblique, toothed on one side. 



A small tree with sharply serrated leaves. Barren and fertile 

 aments small. The fruit is a leafy spike formed from the en- 

 larged ament, having alternate pairs of calyx leaves, which are 

 large, oblique, auriculate at base, toothed on the lower, and en- 

 tire on the upper side. Seed or nut naked, dark colored, heart 

 shaped, acute, ribbed. — Woods, Roxbury, rare. — April, May. 



The name Hoimbeam is often applied in this state to Nyssa 



aquatica. 



395. OSTRYA. 



OsTRYA ViRGiNicA. Hop Hombeam. Iron Wood. 



Cones oblong-ovate ; leaves oblong-ovate, acumi- 

 nate : buds acute. 



This tree is generally of small size, and remarkable for the fine 

 division of the outer bark of its trunk. The leaves are alternate, 

 ovate, a little hearted at base, finely and acutely serrate, acumi- 

 nate. Barren flowers in pendulous aments; scale of the calyx 

 entire, acuminated, strongly ciliated ; anthers many, bearded at 

 tip. Fertile ones enlarging into a sort of oblong cone, in appear- 

 ance resembling the common hop. The fruit is extended, not 

 pendulous, and composed of oval, compressed, mucronated vesi- 

 cles or inflated capsules, bristly at base, lying over each other, 

 and containing a compressed, ovate seed at bottom. 



