148 GLOSSAEY. 



Bisubtripinnate. Nearly twice tripinnate. 



Bitripinnate. Twice tripinnate. See Tripinnate. 



Bitripinnatifid. Twice tripinnatifid. See Tripinnatifid. 



Bulhilles. The young plants growing on the parent frond. 



Calyciform. When the indusium is attached all round the margin of 



the receptacle. 

 Capsules. Cells for the reception of seeds. The Theca of Terns. 

 Caudate. Tailed, or tail-pointed. 

 Caudex. A stem or main-trunk. 

 Caudiciform. Form of a tail. 

 Central. When the indusium is produced from the centre of the 



receptacle. 

 Circinate. When the young fronds unfold in a scroll-like form; being 



rolled inAvards from the summit towards the base. 

 Coespitose. Densely crowded in turf-like patches. 

 Compital. Crosswaj'-, where several ways meet. If the receptacle is on 



the angular crossings or points of confluence of two or more venules. 

 Confluent. When the seed vessels spread so as to join and make a 



connected mass, spread more or less over the frond. 

 Contiguous. Meeting or touching one another, when two parts are in 



contact through their whole length. 

 Cordate-hastate. Shaped like a heart below, the apex being arrow-headed. 

 Cordate- ovate. An oval-heart shape, broad at the base. 

 Coriaceous. When of a leathery consistency. 

 Costa. The midrib of the frond. 

 Costal. Belonging to the ribs; when seed vessels are situated near the 



midrib, they are costal. 

 Crenate. When the frond is toothed on the edge, in regular rounded teeth. 

 Crenato-serrate. A combination of crenate and serrate. 

 Crenulate. Crenate. 

 Cuneate. Wedge-shaped. 



Deciduous. Perns are deciduous that are without leaves in the winter. 

 Decompound. Thrice pinnate. 

 Decurrent. When the leaf portion extends down the stem, and gradually 



merges into it. 

 Deflexed. Bending gradually downwards through the whole length. 

 Dentate. Toothed; when the edge of the frond is jagged. 

 Devoid of Pinnce. Without pinnae. 

 Dichotomous. Where any part subdivides into two branches, and each 



of these again into two others. 

 Dilatate. Extended, spread out. 

 Dimidiate. Fully developed on one side of the midrib, and scarcely at 



all on the other. 



