GLOSSARY OF TECHNICAL TERMS 



31 



Quadrl-; in words of. Latin origin, four, as 

 qitadrannvlar, four-angled. 



Raceme; a flower-cluster, with one-flowered pe- 

 dicels arranged along the sides of a com- 

 mon peduncle. 



Racemose; in racemes or raceme-like. 



Rachls; the axis of an inflorescence or other 

 body. 



Radiate; spreading from a common center. 



Radical; belonging to the root; apparently 

 coming from the root. 



Ray; parts diverging from a center; the mar; 

 ginal flowers of a head as in many Com- 

 poaitae, 



Ray-flowert; the marginal flowers in the heads 

 of many Compotiteie. 



Receptacle; the axis of a flower or the common 

 axis or support of a head of flowers. 



Recurved; curved outward or^bacI(ward. 



Reflexed; bent outward or baclcward. 



Regular; all the parts of each set of organs 

 similar in shape. 



Reniform; kidney-shaped. 



Repand; wavy-margined. 



Reticulate; the veins forming a network. 



Retuse; an obtuse apex somewhat indented. 



Revqiute; rolled backward. 



Rhizome; a rootstock. 



Rhomboldal ; approaching a rhomb in shape, an 

 , equilateral, oblique-angled figure. 



Rib; the principal piece, or one of the principal 

 pieces of the framework of a leaf, or any 

 similar elevated line along a body. 



Rootttook; root-like stems on or under gtiound. 



Rostrate; bearing a beak or a prolonged ap- 

 pendage. 



Rosulate; in a rosette or cluster of spreading 



leaves. 

 Rotate; wheel-shaped. 



Rotund; rounded or roundish in outline. 



Rudimentary; imperfectly developed. 



Rugose; wrinkled. 



Ruminate; looking as though chewed. 



Saccate; bag-shaped. 



Sagittate; shaped like an arrow head. 



Salver-shaped; flowers with a slender tube, the- 

 border spreading at right angles. 



Samara; an indehiscent winged fruit. 



Saprophyte; a plant without chlorophyll, grow- 

 ing in decaying organic matter. 



Soabrld; somewhat rough. 



Scabrous; rough or harsh to the touch. 



Scaly; furnished with scales, or scale-like in 

 texture. 



Scandent; climbing. 



Scape; a peduncle risiiig from the ground or 

 near it, and bearing one or more flowers. 



Scorploid; curved or circinnate at the end. 



Secund; turned to one side. 



Seed; the fertilized and mature ovule of a 

 flowering plan I:. 



Segment; a subdivision or lobe of any cleft 

 body. 



Semi-; in compound words of Latin origin, 

 half, as eemiagnatie, half aquatic. 



Sepal ; a division of the calyx. 



Sepalold; sepal-like. 



Septate; divided by partitions. 



Septlcidal; capsules opening by splitting 

 through the partitions. 



Septum; a partition. 



Seriate; in rows, as biaeriate, in two rows. 



Sericeous; silky. 



Serrate; the margin cut into sharp teeth point- 

 ing forward. 



Serrulate; same as the last, but with fine teeth. 



Sessile; without any stalk. 



Seta; a bristle. 



Setaceous; bristle-likc. 



Setose; covered with bristles. 



Sheath; the base of certain leaves which en- 

 wrap the stem, as in the grasses. 



Sheathing; wrapped around the stem. 



Shrub; a woody plant like a small tree but less 

 than 4 to 6 m in heiglit, or by some con- 

 fined to similar plants which have no dis- 

 tinct trunk. 



Silky; with a coat of fine, soft, shining, cloae- 

 appressed, straight hairs. 



Silvery; shining, white, like silver. 



Simple; of one piece, as opposed to compound. 



Sinuate; a deeply wavy margin. 



Sinus; the re-entering angle between two lobes 

 or projections. 



Slender; long and thin. 



Smooth; not rough. 



Solitary; single. 



SorUs; a fruit-dot or cluster of sporangia in 

 ferns; plural, eori. 



Spadix; a fleshy spike of flowers. 



Spathaceous; spathe-like. 



Spathe; a bract which encloses an Inflores- 

 cence, as in the Araceae* 



Spatuiate; shaped like a spatula, that is, ob- 

 long, much narrowed at the base. 



Splcate, Splciform; resembling a spike. 



Spike; an inaoresccnce like a raceme but with 

 sessile flowers. 



Splkelet; the inflorescence of grasses, one or 

 more flowers subtended by a common pair 

 of glumes or scales. 



Spine; a sharp hard thorn. 



Spinescent; tipped by a thorn. 



Spinose; thorny. 



Spiral; corkscrew-like in arrangement. 



Sporangium; the spore-case in ferns. 



Spore; the microscopic reproductive cells of 

 the ferns and other cryptogams. 



Sporooarp; the capsule or body inclosing the 

 spores. 



Spur; any projecting appendage of the flower. 



Squamose; furnisljed with scales. 



Sguamiform; shaped like a scale. 



Stalk; the stem, petiole, peducle, etc. 



Stamen; the male organs of the flower. 



Stamlnate; furnished with stamenS. 



Standard; the upper petal of a papilionaceous 

 corolla. 



