360 A MANUAL OF MOSSES 



Papillose or Papillate, covered with papillje. 



Paraphyllia, minute thin leaves or branched organs scattered 



among the leaves. 

 Paraphyses, jointed and hyaline hair-like structures growing 



among the reproductiv-e organs. 

 Parenchymatous, composed of broad cells joined end-to-end with 



square ends, not dove-tailed. 

 Paroicoiis, having the antheridia and archegonia in the same 



cluster but not mixed, the antheridia being in the axils of 



the perichsetial leaves below the archegonia. 

 Patent, spreading. 



Pectinate, branched or divided like a comb. 

 Pedicel, the seta or stalk of the capsule. 

 Pedicellate, furnished with a pedicel. 

 Pellucid, translucent but scarcely hyaline. 

 Pendulous, drooping rather more than when cernuous, hanging 



down. 

 Perciirrent, (costa) running through the whole length of the leaf. 

 Perichactiuin, the involucre or whorl of bracts around the female 



flower and thus also around the base of the seta or sessile 



capsule. 

 Perigonium, the whorl of bracts around the male or antheridial 



flower. 

 Peristome, the fringe of teeth, etc., at the mouth of the capsule. 

 Persistent, not easily nor early deciduous. 

 Pinnate, with the branches more or less equidistant and arranged 



on both sides of the stem like a feather. 

 Piliferous, bearing a hair-like prolongation. 

 Plane, flat. 

 Pleiirocarpous, with the flowers more or less axillary and the 



fruit laterally borne. 

 Plicate, folded longitudinally. 

 Plumose, plume-like. 

 Pluriseriatc, arranged in several or many series, as of leaves on 



the stem. 



Polygamous, with the antheridia and archegonia variously dis- 

 posed on the same plant. 



Porose, pierced with small holes or pores. 



Procumbent, trailing along on the ground. 



Proliferous, bearing abnormal shoots, often from the flower 

 cluster. 



Prosenchymatous, composed of narrow cells whose ends dove- 

 tail past each other, as opposed to the square-ended paren- 

 chymatous cells. 



Protonema, the green filamentous phase of the gametophyte which 

 is derived directly from the germination of the spore, and 

 sometimes persisting. 



