376 7 



Subord. IV. CUPULIFER^E. Male fl. in a catkin. Fern, 

 solitary or clustered or spiked. Perianth adnate to the 

 ovary (glans), with a very minute sometimes evanescent 

 limb, surrounded by a coriaceous involucre. 



6. FAGUS. Barren catkin globose. Perianth 5- or 6-fid. 

 Stam. 8 15. Fertile fl. 2 together within a 4-lobed 

 prickly involucre. Stigmas 3. Ovaries 3-cornered and 

 3-ceiled. Nut by abortion 1 2-seeded. 



7. CASTANEA. Barren catkin long, cylindrical. Perianth 

 6-parted. Stam. 820. Fertile fl."3 within a 4-lobed 

 muricate involucre. Stigmas 6. Ovary 5 8-celled. Nut 

 1-celled with 1 3 seeds. 



8. QUEBCUS. Barren catkin long, pendulous, lax. Stam. 

 5 10. Perianth 5 7-cleft. Fertile fl. solitary, with a 

 cupshaped scaly involucre. Stigmas 3. Ovary 3-celled. 

 Nut 1-celled, 1-seeded, surrounded at the base by the en- 

 larged cupshaped involucre. 



9. CORYLTTS. Barren catkin long, pendulous, cylindrical. 

 Scales 3-lobed, middle lobe covering the 2 lateral lobes. 

 Stam. 8. Anth. 1-celled. Perianth 0. Fertile fl. several, 

 surrounded by a scaly involucre. Styles 2. Nut 1-seeded, 

 enclosed in the enlarged coriaceous cut involucre. 



10. CARPINUS. Barren catkin long, cylindrical. Scales 

 roundish. Stam. 5 14. Anth. 1-celled. Fertile fl. in a 

 lax catkin. Scales large, leaflike, 3-lobed, 2-flowered. 

 Styles 2. Nut ovate, 1-seeded. 



Tribe I. Sah'cinea. 



1. SA'LIX Linn. 1 2 Willow. 



Sec. 1. VITISALIX (Dumort.). Catkin and its leafy stalk 

 usually (but not always) deciduous together, lateral, appearing 



1 See Dr. Buchanan White, Scott. Nat. x. 359, and Journ. Linn. Soc. 

 zxvii. 333. 



2 Since the eighth ed. appeared a great advance has been made in the 

 knowledge of this genus. In Dr. White's masterly ' Revision of the 

 British Willows,' Journ. Linn. Soc. cited above, most of the former 

 varieties are treated as merely trivial forms, a number of previously-ac- 

 cepted species are referred to hybrids and many fresh hybrids are described. 

 Messrs. E. F. & W. R. Linton have issued an excellent ' Set of British 

 Willows ' in which man}' of the hybrids are represented. H. & J. G. 



