Prototroph 



Ffldudapogamy 



Nyl., which eventually gets its 

 nourishment by means of another 

 lodger, a different Lichen (Minks) ; 

 prototroph'io {rpo<p^, food), requiring 

 no organic compounds for nourish- 

 ment (C. Jones) ; Prototroph'ism, or 

 Protot'rophy, is the state itself ; 

 the peculiar commensal ism also 

 styled "Wet-nnrse relationship"; 

 also spelled Pro'trophy ; Pro'totype 

 {tv-ttos, a type), the assumed ancestral 

 form, from which the descendants 

 have become modi6ed ; adj. proto- 

 typ'ic ; Protoxy'lem (+ Xylkm), 

 the first-formed elements of wood in 

 a vascular bundle ; protozooph^ilous 

 (^(^ov, an animal ; (piXew, I love), 

 used of certain water-plants which 

 are fertilized by small animals, or 

 protozoa ; Protozy'gote (+ Zygote), 

 K. Pearson's term for a homozygote 

 possessing the dominant AA elements 

 in inheritance ; cf. Allozygote ; 

 Pro'trophy «= Prototrophy ; pro- 

 trop'ic {irph, in front of, + tropic), 

 movement towards the exciting cause 

 (Rothert). 



protru'ding {protnuio, I thrust out), 

 exserted. 



protu'berans (Lat.), bulging out, Pro- 

 tuheran'tia elcnga'ta, ' ' the aciculae 

 of certain Fungals" (Lindley). 



provect'ua (Lat.), carried forward. 



Province {provincia, e government), 

 an area in which climate tends to 

 dominance, as of woodland or moor- 

 land (Crampton). 



provine' (Fr,, provigner), to layer a 

 vine. 



proximal (proximus, next, nearest), 

 the part nearest the axis, as opposed 



to DISTAL. 



proxy'lar J (irpb, ready for; ^vKov, 

 wood), capable of forming wood ; 

 Proxyle', Proxylem = Protoxylem ; 

 Prozy'mogen (+ Zymogen), a mate- 

 rial formed of the chromatin of the 

 nucleus which is extruded into the 

 cytoplasm, there becoming zymogen 

 (MacuUum). 



Prui'na (Lat., hoar-frost) semina'lis, 

 " the spores of certain Fungals " 

 (Lindley) ; pru'inate, pruina'tus, 



pru inose, pruinosvs, pru inoua, 

 having a waxy powdery secretion 

 on the surface, a "bloom." 



Pm'nase, an enzyme found in many 

 species of Prunus ; Pra'nasm, a 

 glucoside associated with it. 



prunif'erous {prunum, a plum ; fero, 

 I bear), bearing plums; prn'niform, 

 pruniforin'is {forma, shape), plum- 

 shaped ; pruni'nus (Mod. Lat., from 

 prunum, a plum), plum-colour 

 (Hayne) ; Pru'nus % = Drupe. 



pru'rient, pru'rieus (Lat., itching), 

 causing an itching sensation. 



Psam'athad {\pdiJ.a9os, sea-sand, -f ad), 

 a strand formation (Clements) ; 

 PsamatM'um, a strand formation ; 

 psamathoph'ilus [<pi\4a3, I love), 

 strand - loving ; Psamathophy'ta 

 {<t>vThv, a plant), strand-plants 

 (Clements). 



Psamme'tum, an association of Psamma 

 arenaria on sand dunes. 



Psammogen'ity {ypd/jL/jLos, sand ; y^vos, 

 offspring), amount of sand in the 

 soil, as affecting the plants growing 

 thereon ; psammog'enons, producing 

 a sandy soil (Clements) ; Psam'- 

 mophile (0tX^w, I love), a plant 

 affecting light sandy soils (F. A. 

 Lees) ; psammoph'ilous {<bi\fw, I 

 love), sand-loving, as the vegetation 

 of dunes ; Psam'mophyte {cpvrhv, a 

 plant), a sand-plant, confined to 

 sandy habitats, as dunes ; Psammo- 

 phyti'a, used by Clements for sand 

 or sandstone plant formations. 



Pseudacran'thic (\|/ei/5)jy, false, -{- 

 acranthic), applied to flowers from 

 dichasial shoots which are apparently 

 terminal (K. Schumann) ; Psend- 

 an'nual (+ Annual), an herbaceous 

 plant which hibernates as a tuber or 

 bulb (L. H. Bailey) ; Pseudan'nulus 

 (+ Annulus), an apparent annulus 

 of specialized cells, exterior to the 

 peristome in Mosses ; pseudan'thic 

 l&ydos, a flower), a flower which 

 simulates a simple flower, but is 

 composed of more than a single axis, 

 with subsidiary flowers ( Delpino) ; 

 Pseudan'this, the state in question ; 

 Psendapog'amy (+ Apogamy), the 



309 



