SALix. 297 



Tr. IV. CUPULIFERyE. Male fl. in a catkin. Fem. solitary 

 or aggregate or spiked. Perigoue adnate to the ovary, 

 with a denticulate limb, sometimes evanescent, sui-rounded 

 by a coriaceous involucre. 



6. Fagus. Barren fl. in a globose catkin. Perianth 6- or 6- 

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

 prickly involucre. Stigmas 3. Ovaries 3-cornered and 3- 

 eelled. Nut by abortion 1 — 2-seeded. 



7. Castanea. Barren fl. in a long cylindrical catkin. Pe- 

 rianth 6-parted. Stam. 8 — 20. Fertile fl. 3 within a "1- 

 lobed muricate involucre. Stigmas 6. Ovary 5 — 8-celled. 

 Nut 1-celled with 1 — 3 seeds. 



8. QoBRCUS. Bari'en catkin long, pendulous, lax. Stam. 

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

 shaped scaly involucre. Stigmas 3. Ovary 3-celled. Nut 

 1-celled, 1 -seeded, surrounded at the base by the enlarged 

 cupshaped involucre. 



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

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

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

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

 inclosed in the enlarged coriaceous laciniate involucre. 



10. Carpinus. Barren catkin long, cylindrical. Scales round- 

 ish. Stam. 5 — 14. Anth. l-celled. Fertile fl. in a lax 

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

 Nut ovate, 1-seeded. 



Tribe I. Salicinece. 



1. Salix iiran.' Willow. 



I. Peduncdlatje latebalbs. 



Catkin and its leafy stalk deciduous together, lateral, appearing 

 vrith the leaves. Scales of uniform colom*. 



* Scales of the catkins soon falling. 



i. Pentandrie {Borr.). Stam. more than 2. L. glossy, glabrous. 

 Trees or large shrubs. — Stipules soon falling. 



1. S. pentandra (L.) ; 1. ovate-elliptical or ovate-lanceolate 

 acuminate glandular-serrate, " slip, ovate-oblong straight equal," 



' I have ventured to place many plants as varieties which are consi- 

 dered as distinct by my able friend Mr. Borrer. I do so with hesita- 

 tion, being very imperfectly acquainted with many of them, but follow 

 the example of most modern botanists. 



o 5 



