44 BRITISH FERNS. 
Pellucid, almost transparent. 
Persistent, lasting, like a > leaf, as contrasted with 
deciduous, like a lilac. 
eugene the little stalk on hich pinnules or pinne are. 
spp orted: ‘the foot-stalk or leaf-stalk.” 
alee ay: 
é primary divisions of a leaf: when a leaf is 
divided like that of the Mountain Ash, the divi- — 
sions are pinney. ; 
Pinnate, divided like the leaf . = Mountain Ash. 
Pinnatifid, almost pinnate; a leaf is deeply 2 
Prostrate, lying on 
Pubescent, t, slightly oi or downy. 
Quadrate, almost —— 
Radicle, small r 
Rachis, the Smeg n ii of a Sond 
Ramify, to b 
Reniform, cane ia a kidney 
Reticulated, when the veins inci each other like 
ofa saw, pointing towards the tip of the leaf.” 
Serratures, th tho tooth of a — — 
Sessile, having no stalk or 
