362 GLOSSARY 



PmNATiFrD (Lat. findo, fidi, to cut), pinnatel y out. 



PiSTiLLAB (Lat. pistillujn, a pestle), club-shaped. 



PrsTTT. T.ART -TunTT. T.tTt , term applied to spermatia which are oblong and 

 slightly thicker at the ends. 



Placodioid, like the genus Placodium, with the thaJlus orbicular, ad- 

 pressed, lobed at the circumference. 



PiATYGONiDiA (Gr. platus, broad, gonos, offspring), gonidia in broadly 

 spreading groups {Cephaleuros). 



PiATYPHYLLOUS {Gi. platus, hroai, phullon, a leaf), broadly lobed. 



Plicate (Lat. plico, to fold), folded in plaits — Plicifobm. 



Plubi-, Latin prefix signifying many. 



PujEiLOODLAB, many-Celled. 



PoDETiUM (Gr. pous, podos, a foot), a stalk-like thaUine elevation support- 

 ing an apothecium. 



PoLABi-BiLocuLAK, of two-ceUed spores with a thick central wall traversed 

 by a connecting tube, the lumen of the ceUs at the extreme ~ends. 



Poly-, Greek prefix signifying many. 



PoLTMOEPHOus (Gr. polus, many, morphe, a change), with several or 

 various forms. 



PoLYPHYLLOus (Gr. polus, many, phuUcm, a leaf), many-leaved. 



Pkoliferods (Lat. proles, offspring, fero, to bear), bearing ofishoots. 



Pbofeb habgln, the rim or margin encircling the apothecium, as distinct 

 from the thaUine margin. 



Pbotococcoid, like the genus Frotococcus. 



Pbtjiha (Lat., hoar frost), powdery secretion or bloom on the surface of 

 plants — -Pbuinose. 



PsEDDO- (Gr. pseudos, false), used as a prefix signifying false or spurious. 



PuLVERACEO-DELiTESCEKT (Lat. pulvis, powder, delitesco, to lie hid), 

 covered with a layer of powdery granules. 



PuLVEBULEHT (Lat. pulvis, powder), powdery. 



PuLVLNATE (Lat. pulvinatus, cushion-shaped), thallus growing in cushion- 

 like masses. 



PuLvrNCLDS, a small cushion-like outgrowth. 



Pycnide (Gr. puknos, dense), a closed fructification containing stylo- 

 spores. 



Pybeniusi (Gr. puren, a kernel), the outer wall of a perithecium or 

 sometimes of a fructification. 



Pybenocaep (Gr. carpos, fruit), a closed fructification (perithecium) opening 

 above by a pore or sUt. 



Pykenodelse (Pyeenodine), (Gr. eidos, like), a term applied to perithecia 

 — Pyrekoid. 



PYBENOPSiDLi^, similar to the genus Pyrenopsis. 



Pybifoem (Lat. pyrus, a pear), pear-shaped. 



Radiate (Lat. radius, a ray or the spoke of a wheel), spreading outwards 



from a centre. 

 Radius, Radii, the outermost lobes or squamules. 

 Ramose (Lat. ramus, a branch), branching. 

 Ramuli, branchlets or secondary branches. 

 Raphides (Gr. raphis, a needle), needle-shaped crystals. 

 Receptacle (Lat. receptaculum, a reservoir), term used for the base or 



surrounding tissue of the apothecium. 

 Renifokm (Lat. rents, a kidney), kidney-shaped. 

 Repand (Lat., bent backwards), with an uneven margin, less so than 



sinuous. 

 Reticulate (Lat. rete, a net), resembling a net-work. 

 Retuse (Lat. rehisus, blunted), with a shallow notch in a rounded apex. 

 Re volute (Lat. re, back, volvo, to roll), roUed back from the margin or 



apex. 

 Rhagadiose (Gr. rhagas, a chink), cracked or fissured. 

 Rhizlna, pi. Rhizih^ (Gr. rhisa, a root), root-like strands or hairs. 



