2.36 AMENTACEjE. [Carpinus. 



duous, shortly stalked, oblongo-obovate, deeply sinuate, their 

 sinuses rather acute, lobes obtuse ; fruits two to three, upon a 

 long peduncle. Br. Fl. 1. p. 407. E. Fl. v. iv. p. 149. E. 

 Bot. t. 1342. — Q. pedunculata, Willd. and foreign authors. — Q. 

 racemosa, Lam. 



Woods. Fl. April, May. J? • — The uses of this valuable tree are 

 well known. It may be readily distinguished from the following spe- 

 cies by its smoother and more even stem, and slower growth, when 

 growing together, as well as by the pedunculated catkin. The word 

 Robnr, Doctor Hooker remarks, is derived from rove, another Celtic 

 word for the oak : whence arises robur, strength, in Latin. 



2. Q. sessiliflora, Salisb. Sessile-fruited Oak. Leaves deci- 

 duous, on long stalks, oblongo-obovate, deeply sinuate, their 

 sinuses rather acute, lobes obtuse ; fruits clustered upon a very 

 short stalk, or sessile. Br. Fl. 1. p. 408= E. Fl. v. iv. p. 



150. E. Bot. t. 1845 Q. Robur, Willd. and most of the 



foreign authors. 



Woods, often intermixed with the last. FL April, Maj\ T? . — The 

 specific name, as Doctor Hooker observes, is calculated to mislead. 

 The flowers are sessile upon the peduncle in both species ; but here 

 the peduncle is very short, or almost wanting : in Q. Robur it is much 

 elongated. — The wood of the present species is said to be much infe- 

 rior to the last : although Doctor Hooker states that an eminent 

 modern author has lately expressed his opinion that it is the Q. sessi- 

 liflora which yields the best timber for ship-building. 



4. Corylus. Linn. Hasel-nut. 



Barren fl. in a cylindrical catkin ; its scales 3-cleft. Perianth 

 none. Stamens eight. Anthers 1-celled. Fertile fl. Pe- 

 rianth obsolete. Germens several, surrounded by a scaly 

 involucre. Stigmas two. Nut 1-seeded, invested at the base 

 by the enlarged, united, coriaceous scales of the involucre. — 

 Name; Kopvs, a casque or cap : the fruit, with its involucre, 

 appearing as if covered with a bonnet. 



Moncecia. Polyandria. 



1. C. Avellana, Linn. Common Hasel-nut. Stipules ob- 

 long, obtuse; leaves roundish, cordate, pointed; involucre of 

 the fruit campanulate, rather spreading, torn at the margin. 

 Br. Fl. 1. p. 410. E. Fl. v. iv. p. 157. E. Bot. t. 723. 



Hedges and copses, abundant. Fl. March. T? . — The wood of the 

 Hasel is used for a number of domestic and agricultural purposes, and 

 makes an excellent charcoal for drawing. The nuts are well known at 

 our tables. 



5. Carpinus. Linn. Hornbeam. 



Barren fl. in a cylindrical catkin ; its scales roundish, ciliated 

 at the base. Stam. 8 — 20. Fertile fl. in a lax catkin ; its 



