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Introduction

 

Epidermis

 

Cortex

 

Leaves

 

Spines

 

Poisons

 

Wood

 

Root Succulence

 

Apical Meristems

 

Cephalia

 

Flowers

 

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Published papers

 

 

Back    Rauhocereus riograndensis. Note the many scales (true leaves) on the flower tube; they are short at the base of the flower tube, longer near the top -- they grade into petals: there is no last scale, no first petal. The transition is smooth and continuous between the two organs.