Rosulate

having the parts more or less laminated, and arranged in a whorl round an axis, in a manner somewhat resembling the disposition of the petals of a rose.

Rotate

wheel-shaped; having a mo-nopetalous corolla, with a very short tube and spreading limb.

Rudimentary

either in an early state of development, or in an imperfectly-developed condition.

Rugose

having the surface covered with wrinkles.

Runcinate

having the large marginal incisions (in a leaf) directed in a curved manner towards the base.

Saccate

resembling a bag or sac.

Sagittate

pointed at the apex, and with the base prolonged backwards from the sides into two acute ears, like an arrow head.

Salver-shaped

hypocrateriform.

Samara

a compressed, few-seeded, coriaceous or membranaceous in-dehiscent pericarp, with a membranaceous expansion or wing at the end or edges, as in the fruit of the Sycamore.

Sapwood

the outermost layers in the trunks of exogenous trees.

Scabrous

harsh or rough to the touch, from the presence of stiff pubescence or scattered tubercles.

Scape

a long naked peduncle, rising from the crown of a root or a subterranean stem.

Scariose

Scarious, thin, dry, and membranous.

Scattered

without any apparent symmetry of arrangement.

Scorpioid

having the main axis of inflorescence curved in a circinate manner, like the tail of a scorpion.

Scurfy

bearing minute scales of membranous matter on the stir-face.

Secund

having the organs (generally applied to flowers) all turned to the same side of the axis round which they are arranged.

Seed

the fertilized ovule.

Semi

in composition, implies a partial or imperfect exhibition of the particular effect implied by the term with which it is compounded.

Sepal

one of the foliaceous expansions of that part of the floral whorl called the calyx.

Sepaline

having reference to sepals.

Serrated

having sharp marginal ser-ratures pointed forward, like the teeth of a saw.

Sessile

applied when an organ is attached to its support without the intervention of some intermediate part: thus, sessilifolius when a leaf is without petiole, sessifiorus when a flower is without a pedicel.

Seta

any stiff bristly hair or straight slender prickle.

Setaceous

having the characters of seta?.

Setose

covered with setae.

Sheath

a petiole, or a portion of it, embracing the stem to which it is attached; a part rolled round a stem or other body.

Shrub

a woody plant which does not form a true trunk, like a tree, but has several stems rising from the roots.

Silicle

Silicula, formed like a si-lique, but about as broad as long or broader.