EXPLANATION OF SCIENTIFIC TERMS. 301 



Flaccid, soft, limp. 



Flexuose, irregularly bent. 



Fluviatile, growiDg in rivers. 



Forcipate, pincer-shaped. 



Frond — of a sea-weed, the whole plant, except the root and 

 fructification. 



Fructification — of sea-weeds, etc., the organs of propa- 

 gation. 



Gelatino-mernbranaceous, gelatinously membranaceous. 



Gelatinous, like a jelly. 



Gemma, a bud. 



Gemmule, a small bud that falls off and becomes a new plant. 



Generic, appertaining to a genus. 



Genus, a group of species having a common character in 

 their fructification. 



Glaucous, having a grey tint on the surface. 



Glutinous, sticky. 



Granule, a small grain. 



Granular, \ -> <? ■> 



' > composed ol granules. 

 Granulate, J 



Homogeneous, of uniform substance or structure. 



Hyaline, transparent and colourless. 



Imbricate, overlapping. 



Inarticulate, not jointed. 



Incurved, bent inwards. 



Indigenous, native. 



Inflated, swollen. 



Infusoria, microscopic animalcules. 



Interlaced, mixed together. 



Internode, part of a stem or branch between two nodes. 



Interruptedly -pinnate, leaflets alternately large and small. 



Interstices, a small intervening space. 



Involucral, having an involucre. 



Involucres, the branchlets which surround spore-clusters. 



Lacinice, small, irregular divisions of a flat frond. 



