PtenothalophTta 



pullulate 



love), dwelling in deciduous thickets; 

 Ftenothalophy'ta {(pvrhv, a plant), 

 deciduous thicket plants (Clements). 

 Pteram'pelid {trrepis, a fern ; i/iireXos, a 

 vine), any climbing Fern (J. Smith). 

 ptera'tus (irrepiiv, a wing), winged ; 



Pterid'um, Pterid'es = Samara. 

 Pteridograph'ia (irrepls, irrep/Sos, a 

 fern ; ypo^)), a writing), a treatise 

 on Ferns, or the science of Ferns ; 

 shortened by J. Smith to Pteri- 

 graphla ; Pterig'taphist, and Pteri- 

 graph'ilist {fiKea), I love), a writer 

 on Ferns ; pter'idoid {eiBos, resem- 

 blance), used by E. Newman for 

 Fera-like, as ~ Ao'rogens; Pteri- 

 do'ma, the body or substance of a 

 Fern ; Pter'idophyte(<^wTj>v, a plant), 

 a Fern, or closely allied plant ; 

 pteridophyt'ic, Fern-like; Pter'ido- 

 gperm {a"K4pfia, a seed), MacMillan's 

 term for plants with obligatory and 

 pteridophytic seeds, and mono- 

 morphic embryos, as Lepidoslrobus ; 

 adj. pteridospermle, pteridosperm'- 

 ous ; Pteridospermaphy'ta (<^utJ)v, 

 a plant), pteridophytic seed-bearing 

 plants (L. Ward). 

 pterig'ynuB {trrepvyivos = irrepivos, 



winged = pterygnus). 

 pt6rooar''poa8, -jnis (irrepbv, a wing ; 

 Kopirhsy fruit) J wing- fruited ; ptero- 

 oaulous, -lis {KavXbsy a stem), 

 wing-stemmed; Ptero'dium, = Sa- 

 mara; pterogo^nni {ycoyla, an angle), 

 pter'oid, pteroi^dous {^ISos, resem- 

 blance), (1) having an elevation 

 of surface assuming a wing-like 

 appearance ; (2) J. Smith uses 

 "pteroid" for Fern-like; pterop'o- 

 dous (irovy, voihs, a foot), wing- 

 footed, the petiole being marginally 

 winged. 

 Pterop'sida (wrepis, a fern; ^is, 

 sight), the group of Filicales, Gymno- 

 sperms, and Angiosperms, with ample 

 leaves; phyllosijihonic Vasculares 

 (Jeffrey) ; aidj. pterop'sid. 

 pterosper'moQS -mus {irrephi', a wing; 

 <rir4p(jM, a seed), with the seeds 

 winged; Ptet'ospores, -a€(-j- Spore), 

 plants having winged seeds (Cle- 

 ments). 



Ptoryg'iuBi {trrepiyiov, a little wing), 



a wing. 

 pteryg'opouB, -pus (»T^pu{, a wing ; 

 irovs, voShs, a foot), having the 

 peduncle winged; pterygosperm'ouB 

 •rmis {ffir4pixa, a seed), = pterosper- 

 mous. 

 pteryg'ynufl {irrepivos, winged), wing- 

 seeded. 

 Pto-'maine (irrw/to, ciilamitv; corpse), 

 used of any alkaloid due to the 

 activity of pathogenous bacteria. 

 Pty'alin {nrvaXoVy saliva), a ferment 

 contained in saliva which transfornjs 

 starch into a sugar capable of fer- 

 menting. 

 Pty'chode Ptycho'des (wtuJ, wtuxos, a 

 fold), the primordial utricle; Pty- 

 choi'des (ei56y, resemblance), the 

 outer surface of the same (Hartig). 

 Ptyx'ii (irTu|is, a folding), vernation. 

 pu'bens (Lat. , arrived at puberty) = 

 pubescent ; Pu'ber (Lat. ), maturity, 

 as of flower or fruit; puTjera [Ae'tas], 

 the period in a fruit succeeding the 

 fertilization of the ovules ; Pu'berty, 

 Pu'hertas, the transition from a 

 young state to maturity of function ; 

 puber'ulus (dim. of Lat. puber, 

 downy, ripe), slightly hairy; Pu'bes 

 (Lat.), Pubes'cence, the hairiness 

 of plants ; pubes^cent, puhes'cens, 

 clothed with soft hair or down ; 

 pubig'erouB {gtTo, I bear), pubescent. 

 Puccinla, a genus of Uredineous Fun- 

 gi ; for its divisions, see Autoeu-, 

 Brachy-, Ed-, Hemi-, Heteroeu-, 

 Lepto-, Micro-, and Opsis-, Forms. 

 Puffing, the emission of spores in a 

 cloud; the equivalent of the German 

 "Stiuben." 

 PufEis, Sir J. E. Smith's equivalent for 



PiLiDiA in Lichens, 

 pugio'niform, pugioniformHs {pugv), 

 a dagger; forma, shape), dagger- 

 shaped. 

 Pull-root, a special form whose function 

 is to contract, and so draw the plant 

 deeper into the soil (Goebel). 

 pulla tus (Lat.), clothed in black. 

 pulley- shaped, compressed and usually 



grodved in its circumference. 

 pullulate {pullulo, I bud), to bud, 



314 



