Phthiriasis 



Phyllocyanin 



Phthiria'sis {ipdeipiaffis, lousy disease), 

 disease produced by aphides or 

 plant-lice. 



Phy'ad {<pv^, form of growth; + ad), 

 a vegetation form, as a tree, a shrub, 

 etc. (Clements). 



Phycobry'a {<pvKos, seai-weed ; fipvov, 

 moss), a term proposed for Char- 

 aceae ; Phycobry'ophytes (+ Bryo- 

 PHYTEs), Gbtz's term for Characeae ; 

 Phycocecid'ia {k^kU, a gall), galls 

 due to the attack of Algae 

 (Lundstrbm) ; phycochroma'ceous 

 (Xp»Mo. colour, + ACEOUs), applied 

 to gonidia which are not green 

 (ohlorophyllaceous) but blue-green ; 

 Phycochromace'tum, a community 

 of blue-green Algae and Diatoms 

 (Warming) ; Phy'cochrome, the 

 bluish-green colouring-matter of 

 brown Algae (Bornet) ; Phycochry'- 

 sin ixpio-os, gold), a constituent of 

 the pigment Phycociirome (Gaidu- 

 kov) ; Phycocy'anin {Kiavos, blue), 

 the blue colouring-matter in Algae ; 

 Phycodoma'tia (Sw^cCrtoj/, a little 

 house), plant shelters inhabited 

 by other plants (Lundstrom) ; 

 Phycoer'ythrine {ipvOphs, red), the 

 red pigment of Floridean Algae ; 

 Phyeohae'matin (oT/xa, blood), a 

 special red colouring-matter in 

 certain Algae, such as Rhytiphloea 

 tiTictoria, Agardh ; Phycorogist 

 {\6yoSt a discourse), a student or 

 expert in the study of Algae ; 

 Phycorogy, the department of 

 botany which relates to Algae ; 

 Phy'coma, the entire mass of an 

 Alffa ; the thallus and reproductive 

 bodies ; Phycoma'ter {fxir-np, Doric 

 for mother), the hymeneal jelly 

 in which some spores germinate ; 

 Phycomyce'tcB {tivKtis, a fungus), 

 a group of Fungi which approach 

 the Algae in some characters ; 

 Pliycopliae'iiie {(paths, brown), the 

 brown colouring-matter of Algae ; 

 Phycophy'ta (^vrbv, a plant), 

 Trevisan 8 name for Characeae ; 

 Phycoporph'yrin {irop<t>vpa, purple), 

 a purple pigment from several 

 species of Zygnema (Lagerheim) ; 



Phycopyr'rhine {irvpphs, dark red), 

 a pigment occurring in the Peri- 

 dineae ; Phycoste'mones X ((tt^^ucov, 

 a filament), "hypogynous or other 

 scales adhering to the disk " 

 (Lindley) ; Phycoxan'thine ( + 

 Xanthin), the yellowish-brown 

 pigment of Algae. 



Phygoblaste'ma {<puyas, a fugitive; 

 iSAao-TTjjuo, a sprout), Minks's temi 

 for a modified form of soredia in 

 Lichens. 



Phykench'yma {(pvKos, sea- weed ; 

 iyxvfia, an infusion), "the ele- 

 mentary tissue of Algals " (Lindley); 

 Phy'kocyan = Phycocyanin ; Phy- 

 koer'ythrin = Phycoeryj hrine. 



Phyla, pi. of Phylum {<pvKov, a tribe); 

 a system of organisms arranged in 

 the assumed succession of develop- 

 ment ; adj. phylet'ic ; --' Mar'gin, 

 the true indusium of Blechnum 

 (Bower). 



Phyl'la, pi. {(pvWov, a leaf), the 

 verticillate leaves which form the 

 calyx ; used in composition as di- 

 phyllous, two-leaved, etc. ; Phyl'- 

 lade, a cataphyllary leaf ; Phyl'- 

 lary, Phylla'ris, a member of the 

 involucre of a Composite flower ; 

 Phyllidlum,term proposed by Bower 

 for the homologue of the leaf in 

 the ganietopliyte ; Phyllile'sia, the 

 correct spelling of Phillilesia ; 

 Phyl'lite, a fossilized leaf; Phyllo- 

 biol'ogy ( -f Biology), the biology 

 of the leaf, in its widest sense ; 

 adj. pbyllobiolog'ic ; Phylloblas'tus 

 (3AO0-T0J, a bud), Koerber's term 

 for Lichens which have a flat 

 leaf-like expansion of the thallus; 

 Phyllobry'on I {0pvov, a moss), the 

 contracted pedicel of an ovary, as 

 in some peppers (Lindley) ; Phyl'lo- 

 clade, Fhylloclad'ium («Ao5os, a 

 branch )> (1) a flattened branch 

 assuming the form and function of 

 foliage ; (2) a thalline outgrowth 

 of a Lichen (Lindsay) ; Phyllocoriy 

 {K6\\a, glue), the production of 

 new leaflets from the leaf surface 

 (Penzig) ; Phyllocy'anin {Kvavos, 

 blue), a blue pigment occurring in 



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