GLOSSARY. 229 



Ring : an elastic band on the spore-cases of Ferns. 



Rinyent : grinning; gaping open; p. 102, fig. 209. 



Root, p. 28. 



Root-hairs, p. 31, 149. 



Rootlets : small roots, or root-branches ; p. 29. 



Rootstock : root-like trunks or portions of stems on or under ground ; p. 40. 



Rosaceous : arranged like the petals of a rose. 



Rostellate: bearing a small beak (rostellum). 



Rtistrate : bearing a beak (rostrum) or a prolonged appendage. 



Rtisulate : in a regular cluster of spreading leaves, resembling a full or double 



rose, as the leaves of Houseleek, &c. 

 Rdtate: wheel-shaped : p. 101, fig. 204, 205. 

 Rotund : rounded or roundish in outline. 



Rudimentary : imperfectly developed, or in an early state of development. 

 Rugose : wrinkled, roughened with wrinkles. 

 Ruminated (albumen) : penetrated with irregular channels or portions filled with 



softer matter, as a nutmeg. 

 Runcinate : coarsely saw-toothed or cut, the pointed teeth turned towards the 



base of the leaf, as the leaf of a Dandelion. 

 Runner : a slender and prostrate branch, rooting at the end, or at the joints, as 



of a Strawberry, p. 38. 



Sac : any closed membrane, or a deep purse-shaped cavity. 



Sagittate: arrowhead-shaped; p. 59, fig. 95. 



Salver-shaped, or Salver-form : with a border spreading at right angles to a slen- 

 der tube, as the corolla of Phlox, p. 101, fig. 208, 202. 



Samara : a wing-fruit, or key, as of Maple, p. 5, fig. 1, Ash, p. 131, fig. 300, and 

 Elm, fig. 301. 



Sdmaroid: like a samara or key-fruit. 



Sap: the juices of plants generally. Ascending or crude sap; p. 161, 168. 

 Elaborated sap, that which has been digested or assimilated by the plant ; 

 p. 162, 169. 



Sdrcocarp : the fleshy part of a stone-fruit, p. 128. 



Sarmentdceous : bearing long and flexible twigs (sarments), either spreading or 

 procumbent. 



Saw-toothed : see serrate. 



Scabrous : rough or harsh to the touch. 



Scaldriform : with cross-bands, resembling the steps of a ladder. 



/Scales : of buds, p. 22, 50 ; of bulbs, &c., p. 40, 46, 50. 



Scaly : furnished with scales, or scale-like in texture ; p. 46, &c. 



Scandent: climbing; p. 37. 



Scape : a peduncle rising from the ground, or near it, as of the stemless Violets, 

 the Bloodroot, &c. 



Scdpiform : scape-like. 



Scar of the seed, p. 135. Leaf-scars, p. 21. 



Scdrious or Scariose : thin, dry, and membranous. 



Sctfbifonn: resembling sawdust. 

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