GLOSSARY 
435 
Se'ta. —A bristle-like structure. 
Setig'erous. —Bristle bearing. 
SiTicle. —A short silique. 
Sil'ique. —The characteristic fruit of the Crucifer a, consisting of a capsule of 2 
valves which separate from the replum in dehiscence. 
Sin'uate. —Wavy margined. 
Soft Bast/ —The unlignified portion of the phloem. 
Somat'ic Cells. —The body cells of an individual, in distinction from reproductive 
cells. 
Sore'dium. —A scale-like structure found on many lichens and consisting of a 
group of algae cells surrounded by a network of hyphae. When detached 
from the parent-plant it has the power of developing vegetatively into a 
mature lichen. 
Soro'sis. —A multiple fruit, as represented by the Mulberry and Osage Orange, 
consisting of a swollen up, condensed and mature spike. 
So'rus. —An aggregation of sporangia. 
Spa'dix. —A fleshy spike more or less surrounded by a bract called a spathe. 
Spathe.— A large bract that encloses or subtends an inflorescence. 
Spat'ulate. —Said of flat leaves that are narrow at the base and become gradually 
broader toward the summit, which is rounded. 
Sperma'tophyte. —A seed plant. 
Spermatozo'id. —A male sexual cell. See Antherozoid. 
Spermatozo'on. —Another name for Spermatozoid or Antherozoid. 
Sper'moderm. —The covering of the seed. 
Sphace'lia. —The conidia stage of Claviceps. 
Spic'ate. —Arranged in a spike. 
Spic'ule. —A small pointed outgrowth. A needle-shaped crystal. 
Spike. —An indeterminate inflorescence consisting of sessile florets arranged 
along a lengthened axis. 
Spike'let. —A secondary spike. 
Spine. —A sharp, rigid termination of a branch as in the Honey Locust. A thorn. 
Spines'cent. —Spiny in structure. 
Sporadic.—Scattered. 
Sporan'giophore. —The stalk or support of a sporangium. 
Sporan'gium. —A spore case. 
Spore. —An asexual or sexual reproductive cell usually with a highly resistant 
cell wall. 
Sporogo'nium.— The asexual generation in Bryophytes and Pteridophytes. 
Spo'rophyll. —A spore bearing leaf. 
Spur. —A tubular or saccate appendage of some part of the flower, usually con¬ 
taining nectar. 
Squamose'. —Scale-like. 
Sta'men. —A male organ of the flower producing pollen. 
Stam'inode. —An abortive and sterile stamen, or any body without an anther 
occupying the normal place of a stamen. 
