xliv 



ANALYTICAL KEY 



TO .THE .ORDERS AND ANOMALOUS GENERA OF THE HONGKONG FLORA. 



CLASS I. DICOTYLEDONS. 



(See p. 1.) 



Flowers- polypetalous (with several petals free from each other, although some- 

 times adherent to the staminal tnh^). 

 Flowers regular or nearly so. 



Pistil apocarpous (consisting of several carpels, either quite distinct orslightly 

 cohering at the base with distinct styles), or of 1 carpel with 1 unilateral 



placenta and 1 simple style A, 



Pistil syncarpous (the carpels united into a single ovary, with 2 or more cells 

 or 2 or more parietal placentas or styles). 

 Stamens hypogynous or very slightly perigynous. 



Stamens indefinite B. 



Stamens definite, twice the number of petals or fewer C. 



Stamens very perigynous or ovary inferior. 



Stamens indefinite J), 



Stamens definite, twice the number of petals or fewer -. E. 



Flowers very irregular p. 



Flowers monopetalous (the petals united at least at the base into a single lobed, 

 toothed, or rarely entire corolla). 



Ovary inferior ' . , , , Or. 



Ovary superior H. 



Flowers apetalous. Perianth of a single whorl of segments or lobes, or none . I. 



A. Regular apocarpous PolypetaU. 

 Stamens indefinit'e. 



Stamens very perigynous EoSACia!, p. 103. 



Stamens hypogynous. 

 Carpel sohtary.- 



Sepals and petals 4 or 5, small, valvate. Trees or shrubs, 



with compound leaves MiMOSBa!, p. 73. 



Sepals 3 to 5) imbricate. Climber with simple leaves . Delima, p. 7. 

 Carpels many. . 



Sepals 5, valvate, no petals. Chmber with opposite leaves Clematis, p. 6. 

 Sepals 3. Petals 6 to 12, all much imbricate in series of 



3 each •••.•• • • .• • MAGNOLiACEa;, p. 7. ' 



Sepals 3. Petals m 1 or 2 series of 3 each, all valvate 



or the petds slightly imbricate ANONACEiE, p. 9. 



(Bee also Sag%Uama m Monocotyledons.) 

 Stamens definite. 



Stamens equal in number and opposite to the petals (alternate 

 _ with the sepals when the petals are wanting). Climbers 



Carpels 3, with 1 ovule in each. Leaves simple . . . Menispeemaceje, p. 11. 

 Carpels 3, with several ovules in each. Leaves digitate . Stattntonia p 14 



