CONTENTS. 7 



6, Lobes only 3 Trilobate. 



7, Lobes 5 or more Palmately-lobed. 



8, Lobes deeply divided .Palmately-parted. 



9, Side-lobes again 2-lobed Pedate. 



CHAPTER XXII. Forms of Compound Leaves 118 



* Pinnately compound. 



a Once compounded, consisting of 



1, Two leaflets opposite and equal Binate. 



2, Three leaflets, the odd one petiolulate Pinnately-trifoliate. 



3, Four or more equal leaflets, all in pairs Equally pinnate. 



4, Five or more equal leaflets, all but one in pairs.. Odd-pinnate. 



5, Alternate leaflets smaller Interruptedly pinnate. 



b Twice compounded, consisting of 



6, Nine leaflets (or 3 trifoliate leaves) Biternate. 



7, Fifteen or more leaflets (3 pinnate leaves) Bipinnate. 



c Thrice compounded, having 27 leaflets Triternate, etc. 



d Irregularly much compounded Decompound. 



* Palmately compounded, consisting of 



10, Three equal leaflets all alike sessile (Clover)... Palmi-trifoliate. 



11, Five or 7 leaflets, all equally sessile Digitate 



CHAPTER XXIH. Transformations of the Leaf 124 



CHAPTER XXIV. Metamorphosis of the Flower. (See Chap. XVHI)... 129 



CHAPTER XXV and XXVI. Inflorescence. Special Forms 134 



Evolution. 



a One flower only from a bud Solitary. 



b From axillary buds, the lowest first opening Centripetal. 



c From terminal buds, the central first Centrifugal. 



Special Forms of Inflorescence. 

 * Centripetal, or Indefinite. 

 a Flowers sessile. 



1, Along a slender rachis Spike 



2, Along a thick fleshy rachis Spadix. 



3, On an extremely short rachis Head 



4, Spike of imperfect fls. caducous together Ament. 



b Flowers borne on pedicels. 



6, Along the sides of a lengthened rachis Kaceme. 



6, Along a short rachis, the lower pedicels lengthened. Corymb. 



7, Clustered on an extremely short rachis Umbel. 



c The pedicels themselves branched. 



8, Loosely Panicle. 



9, Compactly Thyrse. 



