GLOSSARY. 59 



GYRATE, curled up. 



HABITAT, the native home of a plant, where it grows 



indigenously. 



HERBACEOUS, succulent ; juicy. 

 HYBRID, a mixed plant composed of two species. 



HYBRIDIZATION, the commingling or running of plants 

 of different species one with the other. 



HYMENOPHYLLUM UNILATERALE, another name for 

 the Wilsoni. 



IMBRICATED, laid one under the other, like tiles. 



IMMERSED, sunk within the margin of its continent or 

 sheath. 



INDKCIDUOUS, retaining its leaves during the winter, 

 whether changed in their colour or not (con- 

 fined to the former sense herein). 



INDUSIUM, the cover over the mass of seed-cases. 



INVOLUCRE, used by some writers for Indusium; or 

 specially as regards the Woodsia, and the cups 

 of the Hymenophyllum and Trichomanes. 



LACINIATED, jagged. 



LANCEOLATE, narrow-oblong-triangular above, and 

 contracting again below ; lance-shaped. 



LASTREA, the name used by some writers for that 

 portion of the genus Aspidium which has a 

 kidney-shaped Indusium. 



FffiNiSECii, the Aspidium Eecurvum. 



LATERAL, springing from the side of the root, 

 stem, &c. 



LATO, in composition, broadly ; widely ; for example, 



LANCEOLATE, fuller in the centre, and there- 

 fore tapering off more obtusely. 



