LYGINODENDRON 



39 1 



mass of thick-walled strengthening tissue. The chalazal 

 bundle then breaks up into the peripheral strands 

 (usually nine in number) which traverse the whole 

 length of the integument (Figs. 148 and 149). The 



Fig. 149. — Lagenostoma LomaxL Diagrammatic transverse sections in the planes 

 A, B, C, and D of Fig. 148. A (through micropyle) shows pollen-chamber canopy of 

 integument and free lobes of cupule ; B (through body of seed) shows fused nucellus 

 and integument, with vascular bundles, and cupule partly divided into lobes ; C 

 (through chalaza) shows central bundle, chalazal tissue, base of integument, and 

 continuous, furrowed cupule ; D, section of the rachis-like pedicel. After Oliver. 



* 



latter expands in its free part, towards the micropyle, into 

 the chambered " canopy," a ring of nine loculi, separated 

 from each other by thick partitions, but filled by a 

 delicate tissue which has commonly perished. Into 

 each of these loculi, one of the nine vascular bundles 



