GLOSSARY. 



549 



ittternode, developing the root from its lower 

 extremity. 



Radiculose. Bearing rootlets or rhizoids. 



Ramcal. Belonging to a branch. 



Ramose. Branching. 



Ramulose. Bearing branchlets. 



Ray. One of the radiating branches of an 

 umbel ; the marginal flowers, as distinct from 

 the disk, of a compound flower, umbel, etc. 



Receptacle. A more or less expanded or pro- 

 duced surface forming a common support for 

 a cluster of organs (in a flower) or a cluster 

 of flowers (in a head), etc. 



Jteclinate, Reclining. With an erect or ascend- 

 ing base, the upper part recurved and trail- 

 ing. 



Rectangular. Of an oblong right-angled figure. 



Recurved. Curved backward or downward. 



Reflexed. Bent abruptly down or backward. 



Refracted. Reflexed from the base. 



Regular. Symmetrical in form ; uniform in 

 shape or structure. 



Reniform. Kidney-shaped ; deeply cordate with 

 the breadth exceeding the height. 



Rcpnnd. With the margin slightly sinuate or 

 wavy. 



Replum. A frame-like placenta left by the fall- 

 ing away of the valves, as in Cruciferee, some 

 Papaveracese, etc. 



Reticulated. With markings or veinings re- 

 sembling network. 



Rctrorse. Turned back or downward. 



Retuse. With a shallow or obscure notch at the 

 rounded apex. 



Rcvolute. With the margins or apex rolled 

 backward. 



Rhachis. The axis of a spike or of a compound 

 leaf or frond. 



Rhaphe. The adnate funiculus of an ovule or 

 seed, connecting the hilum witli the chalaza. 



Rhaphides. Crystals, usually needle-shaped and 

 clustered, within the cells of plants. 



Rhizines, or Rhizoids. The peculiar root-hairs 

 of Mosses, Lichens, etc. 



Rhizomatous. Producing rhizomes or of the 

 character of a rhizome. 



Rhizome, or Roolstock. A somewhat horizontal 

 underground rooting stem, producing a stem, 

 leaves or flower-stalk at its apex or nodes, 

 often short or tuberous. 



Rhombic. Obliquely four-sided. 



Rhomboidal. Somewhat rhombic in outline. 



Rib. A principal and prominent nerve of a 

 leaf. 



Ribbed. Furnished with prominent nerves. 



Ringent. Gaping, applied to a labiate corolla 

 with open throat. 



Root. That part of a plant growing under- 

 ground and supplying it with nourishment. 



Rootlet. A very slender root or branch of a 

 root. 



Roolstock. See Rhizome. 



Rostellatc. Diminutive of Rostrate; having a 

 small beak. 



Rostrate. Beaked ; bearing a slender terminal 

 process. 



Rosulate. Collected in a rosette. 



Rotate. Wheel-shaped ; of a corolla, spreading 

 abruptly from near the base and nearly flat. 



Rotund. Rounded in outline. 



Rough. Not smooth to the touch ; scabrous. 



Rudiment. A partially developed and imperfect 

 organ. 



Rudimentary. In an imperfectly developed 

 condition. 



Rufous. Eeddish or brownish red. 



Rugose. Wrinkled ; ridged. 



Ruminated. Penetrated by irregular channels, 

 as a nutmeg. 



Runcinate. Deeply toothed or incisely lobed, 

 with the segments directed backward. 



Runner. A very slender prostrate branch (sto- 

 lon), rooting and developing a new plant at 

 the nodes or tip, as in the strawberry. 



Saccate. Sac-shaped ; furnished with a sac or 

 pouch-like cavity. 



Sagittate. Shaped like an arrow-head ; trian- 

 gular with basal lobes prolonged downward. 



Salver-shaped. Narrowly tubular with an ab- 

 ruptly expanded flattened limb. 



Samara. An indehiscent membranously winged 

 fruit, as in the Ash and Maple. 



Sarcocarp. The succulent part of a fleshy fruit. 



Sarmentose. Producing long runners. 



Scabrous. Rough to the touch with minute 

 rigid points. 



Scales. Usually variously modified bracts or 

 leaves, thin and scarious, or coricaceous, 

 fleshy, foliaceous, or woody, often imbricated. 



Scandent. Climbing. 



Scape. A naked peduncle rising from the 

 ground. 



Scapigerous. Producing scapes. 



Scar. A mark of separation left upon a surface, 

 as upon a stem by the fall of a leaf. 



Scarious. Thin, dry and inembranaceous, not 

 green. 



Scobiform. Having the appearance of sawdust. 



Scorpioid. Incurved like the tail of a scorpion, 

 applied to a unilateral circinately coiled in- 

 florescence, unrolling as the flowers expand. 



Scrobiculate. Marked by minute depressions. 



Scurf. Small bran-like scales on the epidermis. 



Scutclliform. Platter-shaped, with a distinct 

 and raised margin. 



Scymetar '-shaped. Curved and somewhat flat- 

 tened triquetrous, thick upon the straighter 

 side, the convex edge thin. 



Secund. Turned in one direction, as the leaves 

 or flowers upon a stem. 



Seed. The ripened ovule, consisting of the em- 

 bryo with its proper envelopes. 



Segment. One of the parts of a leaf or other 

 organ that is cut or divided ; more general 

 than Lobe. 



Sepal. A leaf or division of a calyx. 



Sepaloid. Resembling a sepal. 



Septate. Divided by partitions or septa. 



Scpticidal. Dehiscing through the dissepiments 

 and between the cells, or through the lines of 

 junction of the carpels. 



Septiferous. Bearing the partitions after dehis- 



