GLOSSARY. 159 



b. Dehiscent, 

 capsule, dry and opening by as many or twice as many valves as there are carpels, or 



by pores ; 

 follicle, a single 1 -celled, many-seeded carpel opening by ventral suture; 

 legume, a single 1-celled carpel with many seeds in 1 row dehiscing into 2 valves; 

 lomeni, a jointed pod which separates transversely into 1-seeded segments; 

 pod, same as legume and silique; 

 pyxis, dry and many-seeded, opening by a lid; 

 regma, with dehiscent carpels separating elastically; 



.. --, 2-carpeled. 2-celled by false dissepiment. 2-valved with 2 parietal placentae. 

 silicle, a short silique. 

 Fruits involving many pericarps or a whole flower-cluster are: 



cone or strobilus of the Gymnosperms and some Pteridophytes, a mass of im- 

 bricated scales; 

 cone or syncarpium of the Magnolia, closed pericarps on a lengthened torus; 

 sorosis. the whole flower-cluster becoming a mass of united pericarps (multiple 



J ruit) ; 

 syconium, numerous achenes enclosed within the hollow fleshy receptacle. 

 Fugacious: soon dropping off. or fading. 

 Fulvous: tawny or dull yellowish brown. 

 Gibbous: swollen on one side. 

 Gland: a small protuberance secreting a liquid. 



Glaucous: with a bloom or powdery, when whitish or light bluish-green. 

 Glumaceous: resembling glumes or bearing glumes. 



Glumes: the outer husks or chaffy bracts in the inflorescence of the Grasses. 

 Gynandrous: said of stamens when united with the style. 

 Habitat: place of growth of a wild plant, as terrestrial, aquatic, epiphytic, etc. 

 Horn: a tapering appendage. 

 Husk: the dry outer covering of some fruits; 

 Hyaline: colorless translucent. 



Hybrid: plant produced by crossing of two species. 

 Imbricate: overlapping like the shingles on a roof. 



Indehiscent: said of a pericarp (or jruit) which does not open to liberate the seeds. 

 Indusium: a delicate flap arising from the epidermis of a frond and covering a sorus 

 of a fern; the inrolled margin of a frond protecting the sort alongside, is 

 called false indusium. 

 Inflorescence: a definite region of a plant set apart for the production of flowers; 

 — the term is also used to indicate the groups in which the flowers are ar- 

 ranged on the plant. Two types are often mentioned, viz: 



a. Centripetal, with the older flowers at the base or at the circum- 

 ference of the group, 

 spike, with slender rachis and sessile flowers; 

 spadix, with thick fleshy rachis and sessile or imbedded flowers; 

 amenl or catkin, a slender, often drooping spike with unisexual flowers subtended 



by bracts; 

 raceme, erect or drooping rachis with flowers on pedicels from different points 



of the rachis; 

 corymb, same as raceme, but flat-topped or convex through the greater length 



of the lower pedicels; 

 umbel, much like the corymb, but the pedicels come from the same point of the 



rachis; 

 head, a reduced umbel with the flowers (florets) sessile upon the torus; 



