GLOSSARY - Re 
Resin-warts or glands. Glands that secrete resin (bayberry, 
black birch). 
Resiniferous or resinifluous. Exuding or producing resin. 
Reticulate. Netted, usually referring to veins of a leaf. 
Retrorsely hairy. With hairs directed downward on stem or 
leaf. 
Revolute. With the margins rolled back, as applied to leaves. 
Ring-porous. Wood in which the ducts first formed in the 
season are either larger or more crowded than those 
formed in summer (oak). 
Root-climber. A plant climbing by aid of aerial roots. 
Rudiment. Beginning of an undeveloped member. Con- 
trasted with vestige. 
Rugulose. Minutely rugose or wrinkled. 
Savory. Smelling like thyme. 
Sap. As here used, the fluid that flows from a freshly cut 
leaf-stalk or twig. 
Scabrous. Rough to the touch. 
Seale. As usually employed, a reduced leaf, as in winter 
buds, ruscus, etc.: one of the parts of a cone of the larch, 
etec.: a flattened (rhododendron) or peltate (elaeagnus) 
hair. 
Scarious. Thin, dry and papery. 
Scattered. Not in any of the usual definite groups, as applied 
to leaves, bundle-traces, etc. 
Scrambling-plants. Climbers that neither coil nor produce 
aerial roots or tendrils (rose). 
Scurfy. Scaly rather than hairy. 
Sepals. Modified leaves forming the outer floral envelope. 
Serrate. Saw-toothed: the teeth pointed upward. 
Serrulate. Serrate with fine teeth. 
Sessile. Not stalked. 
Setaceous. Bristle-like, very narrow. 
