42 Salisbury. — On the Structure and Relationships of 
Text-fig. 3. Diagrammatic restoration of an ideal median longitudinal section of Trigono- 
carpus Sliorensis passing through a primary and secondary rib. The sclerotesta and limiting layers 
of the sarcotesta are shown in black ; the ribs are cross-hatched, and the inner flesh, the extent of 
which is hypothetical, is represented by diagonal shading. The branching of the chalazal bundle is 
based on analogy with T. Parkinsoni , and the direction of one of the sarcotestal strands is also 
shown as a dotted line, though not actually present in the plane of section. Nucellar tissue dotted, 
secretory sacs black. 
