EXPLANATION JOP “PLATES 
Abbreviations. A & B, primary segments of embryo; adr, adven- 
titious root; af, antipodal cells; a@s, axillary scale; ax, axillary 
member; ax, axial bundle; ax by, axillary branch; C, third segment 
of embryo; c, cortex; cal, calyptrogen; cd, cortical bundle; ¢c, com- 
panion cell; co/, coleorrhiza; cov, connective; cot, cotyledon; d, der- 
matogen; di, diaphragm; e, egg; ems, embryo-sac; end, endodermis ; 
ep, epidermis; epc. epicotyl; /fZ, flower; fs/, floral scale leaf; gen 
generative cell; GP or ep, growing point; hyp, hypocotyl; 7, inter- 
cellular space; 7c, inner cortex; /a, lacuna; L or /, leaf; /6, lateral 
bundle ; /ow. sf/, lower subfloral leaf; /pm, lower polar nucleus; ma, 
male cells; mc, middle cortex; oc, outer cortex; pa, parietal layer or 
layers; pd, periblem; ped, peduncle; fist, pistil; p/, plerome; pm, 
pollen mother-cells; 7, primary root cells; 7, root; rh, root hairs; 
rha, rhachis; rs, root stock; s, sieve tube; se, secretion cells; sf/, 
subfloral leaf; sg, starch-grains; sh, sheath; spo, sporogenous cells; 
spt, septum; sf, stem or stem apex; sf¢a, stamen; sfc, stylar canal; 
sig, stigma; sti, stipe; sus, suspensor; syn, synergidae, ¢a, tapetum; 
th, theca; ¢m, tube nucleus; tra, tracheae; ¢r7, trichoblasts; u, un- 
dulations; “fm, upper polar nucleus; wp. sfl, upper subfloral leaf; 
ust, upright stem; vs/, vegetative scale leaf. 
