Conjunctal veins: (0) joining and fusing with the principal vein, opposite; (1) joining and fusing with the principal vein, alternate; (2) incipiently
connivent, with only a few strands merging; (3)
connivent with the principal (i.e., running alongside it and splaying or ending concurrently in tooth epithem); (4) convergent but remaining separate; (5) only one conjunctal, joining; (6) "vitioid" tooth venation, in which alternate conjunctals split just before meeting the principal vein, with the admedial portion of the conjunctal joining the principal while the exmedial portion connives; (7) Cnestis N/A; (8) Disanthus N/A; (9) Griselinia N/A.
One is the position of the retinacle: When the filament is present, it lifts the anther above the thickest portion of the style head, so that the five anthers are
connivent above it and are fused to the style head above its thickest portion (e.g., Fig.