404 



GLOSSARY. 



Rugulose. Slightly wrinkled. 

 Runcinate. Sharply incised with the 



segments directed backwards. 

 Rupestrine. Growing among rocks. 



Saccate. Sac-shaped. 

 Sagittate. Arrow-shaped. 

 Salverform. Having a slender tube 



abruptly expanded into a flat limb. 

 Salient. Prominent. 

 Samara. An indehiscent winged fruit 



(Aceraceae). 

 Saprophytic. Depending on dead 



organic matter for its food. 

 Scaberulous. Minutely scabrous. 

 *- Scabrid. Minutely scabrous. 

 Scabrous. Covered with short hairs 



or points. 

 Scapose. Bearing or resembling a 



scape. 

 Scarious. Thin, dry, membrana- 



ceous, not green. 

 Scutellate. Plate-like. 

 Secund. One-sided. 

 Septicidal. Dehiscing through the 



partitions and between the cells. 

 Septifragal. Dehiscing into parts 



which break away from the parti- 

 tions. 



Serratures. Serrations. 

 Serrulate. Finely serrate. 

 Setaceous. Bristle-like. 

 Setose. Beset with bristles. 

 Sheath. A tubular envelope like the 



lower part of the leaf in the grasses. 

 Silicic. A short silique (Cruciferae}. 

 Silique. A long 2-celled slender pod 



(Cruciferae). 



Sinuate. Outline strongly wavy. 

 Sinus. The recess or indentation 



between two lobes. 

 Sordid. Dirty white. 

 Sorus. A cluster of spore-cases; a 



fruit-dot (Polypodiaceae}. 

 Spathaceoiis. Spathe-like. 

 Spathe. A large petal-like bract 



enclosing an inflorescence. 

 Spatulate. Gradually narrowed 



downward from a rounded summit. 

 Spike. A simple inflorescence with 



the flowers sessile on a more or less 



elongated axis. 

 Spikelet. A small spike, especially 



the peculiarly specialized one in the 



grasses. 



Spinescent. Becoming spiny. 

 Spinulose. With very small spines. 



Spiricle. A minute coiled thread 



found on some seeds. 

 Sporangium. A spore-case. 

 Sporocarp. A pod-like structure en- 

 closing the spore-cases (Marsilea- 



ceae). 



Spur. A hollow-sac or tubular ex- 

 tension of the calyx or corolla or 



both, usually nectariferous. 

 Stellate-pubescent. With star-shaped 



hairs. 

 Sterile. Incapable of producing; as a 



flower without a pistil or a stamen 



without an anther. 

 Stipel. A stipule-like organ at the 



base of a leaflet. 

 Stipitate. With a stalk. 

 Stolon. A runner or basal branch 



that tends to strike root. 

 Stoloniferous. Having stolons. 

 ' Striae. Minute longitudinal lines. 

 Striate. Marked with longitudinal 



lines or ridges. 

 Strigose. Covered with short stiff 



appressed hairs. 

 Strophiole. An appendage near the 



hilum on certain seeds. 

 Stylopodium. A disk-like expansion 



at the base of the style (Umbelli- 



ferae). 



Submersed. Growing under water. 

 Suffrutescent. Slightly or obscurely 



shrubby. 



Sub- Somewhat or slightly. 

 Subulate. Awl-shaped. 

 Succulent. Juicy, fleshy. 

 Supra-axillary. Produced not in but 



above the leaf-axils. 

 Suture. The line of dehiscence. 

 Syngenesious. Stamens with united 



anthers but separate filaments. 



Tawny. Dull yellowish brown. 



Tegule. One of the sepal-like bracts 

 surrounding the head in the Com- 

 positae. 



Terete. Cylindrical or nearly so; not 

 compressed. 



Ternate. In threes. 



Tetradynamous. With four long and 

 two short stamens. 



Thallus. A plant body not differ- 

 entiated into root, stem and leaf. 



Thyrsoid. Resembling a thyrsus. 



Thyrsus. A contracted cylindrical or 

 ovoid and usually compact panicle. 



