166 GLOSSARY 



Rostrate. Beaked. 



Rotate. A term applied to a flat spreading corolla. 



Runcinate. Cut into sharp, backward-pointing divisions. 



Sac. A pouch or sack. 



Sagittate. Shaped like an arrowhead. 



Samara. A simple, indehiscent, winged fruit. 



Saprophyte. A plant that lives on decayed organic material. 



Scabrous. Rough. 



Scale. A small or rudimentary leaf. 



Scape. A naked flower-stalk rising from the ground. 



Scarious. Thin and dry. 



Segment. A division of a leaf or other organ. 



Sepal. A leaf of the calyx. 



Serrate. Toojhed, the teeth pointing towards the apex. 



Serrulate. Serrate, but the teeth very small. 



Sessile. Having no stalk. 



Silicle. A long, narrow silique. 



Silique. A two-valved fruit with two parietal placentae. ' 



Sinuate. With deeply wavy margin. 



Sinus. The depression between the lobes of a leaf. 



Sorus, pi. sori. A group of sporanges. 



Spadix. A spike with a fleshy axis. 



Spathe. A bract more or less surrounding a spadix. 



Spike. A long flower cluster, the flowers sessile on a common axis. 



Sporange. A spore-sae. 



Spore. The asexual reproductive cell of a cryptogam. 



Spur. A hollow projection of some part of, a flower. 



Squarrose. With the parts spreading. 



Standard. The upper petal of a papilionaceous corolla. 



Sterile. Without seeds or spores. 



Stigma. The part of the pistil to which the pollen grains adhere. 



Stipe. The stalk of a part of a flower. 



Stipule. A small, usually leaf-like appendage at the base of the 

 petiole. 



Stolon. A creeping branch rooting at the nodes. 



Strict. Erect and not spreading. 



Style. The stalk-like part of the pistil, supporting the stigma. 



Succulent. Juicy. 



Superior. Free from the dalyx, when applied to the ovary ; at- 

 tached to and rising from the ovary, when applied to the 

 calyx. 



Suture. The line through which a pod splits. 



