GLOSSARY 



351 



raceme, or corymb, or of a 

 compound leaf. 



Radical, belonging to or pro- 

 ceeding from the root or base 

 of the stem near the ground. 



Radicle, the portion of the em- 

 bryo below the cotyledons. 



Ramification, branching. 



Raphe, the ridge or adnate 

 funicle which in an anatro- 

 pous ovule connects the two 

 ends. 



Ray, the branch of an umbel ; 

 the marginal flowers of an 

 inflorescence when distinct 

 from the disk flowers (as in 

 capitulum). 



Receptacle, the more or less ex- 

 panded or produced portion 

 of an axis which bears flowers 

 in the form of a head. 



Regular, uniform in shape or 

 structure. 



Reniform, kidney-shaped. 



Repand, with a slightly wavy 

 and somewhat sinuate mar- 

 gin. 



Reticulate, in the form of net- 

 work ; net-veined. 



Revolute, rolled backward from 

 the margins. 



Rhizome, any, prostrate or sub- 

 terranean stem, usually root- 

 ing at the nodes and becom- 

 ing erect at the apex. 



Rib, a vein of a leaf 



Root, the underground part of 

 a plant which supplies it with 

 nourishment. 



Rootstock, same as Rhizome. 



Rostellum, a little beak; a 

 slender extension from the 

 upper edge of the stigma in 

 Orchids. 



Rosulate, in the form of a 

 rosette. 



Rotate (corolla), wheel-shaped 

 regular gamopetalous co- 

 rolla; flat and circular in 

 outline with a short tube. 



Runner, a filiform or \ery 

 slender stolon. 



Saccate, sac-shaped. 



Sagittate, shaped like an arrow- 

 head, the basal lobes directed 

 downward. 



Samara, an indehiscent winged 

 fruit. 



Scabrous, rough to the touch. 



Scape, a peduncle rising from 

 the ground, naked or with- 

 out proper foliage, bearing 

 one or more flowers. 



Scapigerous, bearing a scape. 



Scarious, thin, dry, and mem- 

 branaceous ; not green. 



Scorpioid (inflorescence), alter- 

 nate-sided cyme, circinately 

 coiled while in bud. 



Seed, the ripened ovule, con- 

 sisting of the embryo and its 

 proper coats. 



Segment, one of the parts of 

 a leaf or other like organ 

 that is cleft or divided. 



Sepal, a division of a calyx. 



Septate, divided by partitions. 



Septicidal (capsule), dehiscing 

 through the partitions or 

 septas and between the cells. 



Septum, any kind of partition. 



Serrate, having sharp teeth 

 pointing upward. 



Serrulate, finely serrate. 



Sessile, without footstalk of any 

 kind. 



Sheath, a tubular envelope, as 

 the lower part of the leaf in 

 Grasses. 



Sheathing, inclosing as by a 

 sheath. 



