GLOSSARY. 



Reticulated : the veins forming network. 



Retroflexed : bent backwards; same as reflexed. 



Refuse : blunted; the apex not only obtuse, but somewhat indented. 



Revolute : rolled backwards, as the margins of many leaves. 



Rhachis (the backbone) : the axis of a spike, or other body. 



Rhaphe: the continuation of the seed-stalk along the side of an anatropous 

 ovule or seed. 



Rhdphides : crystals, especially needle-shaped ones, in the tissues of plants. 



Rhizdma : a rootstock. 



Rhombic: in the shape of a rhomb. Rhomboidal : approaching that shape. 



Rib: the principal piece, or one of the principal pieces, of the framework of 

 a leaf, or any similar elevated line along a body. 



Rmgent : grinning ; gaping open. 



Rootlets: small roots, or root-branches. 



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



Rosaceous : arranged like the petals of a rose. 



Rostellate: bearing a small beak (rostelhim). 



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



Rdsulate: in a regular cluster of spreading leaves, resembling a full or dou- 

 ble rose, as the leaves of Houseleek, &c. 



Rotate: wheel-shaped. 



Rotund: rounded or roundish in outline. 



Rudimentary : imperfectly developed, or in an early state of develop- 

 ment. 



Rugose : wrinkled, roughened with wrinkles. 



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

 with softer matter, as a nutmeg. 



Runcinatc: 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. 



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



Sagittate : arrowhead-si inped. 



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



slender tube, as the corolla of Phlox. 



Samara: a wing-fruit, or key, as of Maple, Ash, and Elm. 

 Sdmaroid : like a samara or kev -fruit. 

 Sap: the juices of plants generally. Ascending or crude sap. Elaborated 



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

 Sdrcocarp: the fleshy part of a stone-fruit. 

 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, of bulbs, &c. 



Scaly: furnished with scales, or scale-like in texture. 

 Scandcnt : climbing. 

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