APPENDIX. 227 



The same term is used when the ovules are upon a raised column 

 or projection from the receptacle into the ovary, without connection 

 with dissepiments or carpels. 



Thalamus. Same as the torus or receptacle. It is from the Greek 

 " thalamos" an inner room or chamber. 



Saprophyte. See Parasite. 



Sarcocarp. Another term for the mesocarp when it is pulpy or 

 fleshy. From the Greek " sarx" gen. " sarkos," flesh, and 

 " karpos" fruit. 



Sclerenchyma. Cellular tissue of which the walls of the cells 

 are more or less thickened and hardened. It is from the Greek 

 " skleros" hard, and " encheo" I pour in (" enchyma" tissue). 



APPENDIX B. LEAVES. 



Rachis. That part of the lengthened petiole or peduncle, along 

 which are arranged the leaflets of a compound leaf, or the flowers 

 of an inflorescence, as the case may be. 

 From the Greek " rachis" the backbone. 



Pedatifid. Used of a palmatifid leaf {simple, p. 95), when the 

 two side divisions are again indented or cleft. 



The word is derived from the Latin '' pes," " pedis" a foot ; and 

 is used from a fancied resemblarice of a leaf so divided to the foot of 

 a bird. 



Pedate. (Same derivation). Used in like manner of a palmately 

 compottnd leaf when the two side leaflets are deeply lobed or cleft. 

 Sometimes the clefts are so deep that they reach into the 

 petiole, and the divisions are themselves leaflets. 



Capillary. Used of a finely-divided leaf. Hair-like; from the 

 Latin " capilltts" hair. 



