mi 



2.— ENGELHARDTIA. 



1. E. Wallichiana, Lindl. ; Hook. Fl. Brit. Ind. v. 596. Happy 

 Valley, Mt. Gough, and Little Hongkong woods, Hong- 

 kong. Fl. yellow, June. 



3.— PLATYOARYA. 



1. P. strobilaoea, Sieb. et Zucc. ; DC. Prodr. xvi. ii. 145. Lien- 

 chow River. Fl. March. 



MYEICACBAE. 



1.— MYRIOA. 



1. M. rubra, Sieb. et Zucc. ; Benth. Fl. Hongk. 322. Mt. Victoria, 

 Mt. Kellet arid Mt. Parker south', Hongkong ; common 

 on the hills near Yit-hai, Swatow ; Canton? Fl. yellow, 

 March. 



AMENTACEAE. 



Key to genera. 



Fruit a catkin of many small capsules 

 Fruit of one or more large nuts 

 Pericarp smooth or unarmed ... 

 Pericarp prickly 



3. Salix. 

 2. 



1. Quercus. 



2. Castanopsis. 



1.— QUEROUS. 



■ Key to species. 



1. Cup enclosing acorn 2. 



Cup no,t enclosing acorn ... ... 5. 



2. , Leaves over 6 inches long ... .... 19. 



Leaves under 6 inches long, entire or 



undulate ... ... ... ••• 3. 



3. Cup with concentric rings ... ... 4. 



Cup scaly ... ... ... ... 20. 



4. Leaves silvery, veins prominent beneath 3. sclerophylla. 

 Leaves green beneath, veins not raised 4. cuspidata. , 



5. Cup attached to acorn at base only ... 7> 

 Cup attached to bottom and sides- of 



acorn ... ... ... ... 6. / 



6. Leaves glabrous ... ... ••■ 5. cornea. 



Leaves pubescent ... ... ... 6. uvariifolia. 



7. Cup with concentric zones ... ... 8. 



Cup scaly ... ... ... ... 15. ^ 



8. Leaves glabrous ... ... ... ,9. 



Leaves pubescent ... ... ... 7. Championi. 



9. Leaves linear-oblong 8. salicina-. 



Leaves lanceolate ' ...'... ... ' 10^ 



