Scleros, Greek for hard, hence Sclerocarpous, hard-fruited.
Scobiform, resembling sawdust.
Scorpioid or Scorpioidal, curved or circinate at the end, [77].
Scrobiculate, pitted; excavated into shallow pits.
Scurf, Scurfiness, minute scales on the surface of many leaves, as of Goosefoot.
Scutate, Scutiform, buckler-shaped.
Scutellate, or Scutelliform, saucer-shaped or platter-shaped.
Secund, one-sided; i. e. where flowers, leaves, &c., are all turned to one side.
Secundine, the inner coat of the ovule, [110].
Seed, [125]. Seed-leaves, see [cotyledons]. Seed-vessel, [127].