Organel 



Paramylam 



Or'ganel, c/. Plasmorgan. 



Or'gans, Conser'vative, the root, stem, 

 leaf and sporange (Jeffrey). 



omithocoproph'ilous [kottpos, dung ; 

 ifiiXio), I love), applied to lichens, 

 which benefit by the excreta of 

 birds (Semander). 



orobanoha'ceous, akin to Orobanche 

 Linn. 



orogen'ic {y€vos, race), " mountain- 

 making " (Clements) ; Orohyli'oa 

 ( + Hylion), an alpine forest of 

 Picea Link and Abies Linn, (id.) 



Orthid'iam {opdos, straight ; t8ios, 

 personal), a supposed fructification 

 in lichens, but actually a parasitic 

 lichen (A. L. Smith); Orthobi'ont 

 {ovTa, things existing), a being 

 of direct succession from one zygote 

 to a new one (Janet); adj. ortho- 

 biont'ic; orthocle'ma {KXrjixa, a 

 twig), straight branched or leaved ; 

 orthogenet'ic, cf. Orthogenesis ; 

 Orthog'amy {ydp-os, marriage), the 

 normal relations of male and 

 female ; or'thoploid (probably an 

 error for octoploid) ; Or'thophyte 

 {<I)vt6v, a plant), a plant from egg 

 to egg ; sporophyte + gameto- 

 phyte (Janet). 



osmonda'ceous, akin to Osmunda Linn. 



Ostruthie'tum, an association of 

 Peucedanum Ostruthium Koch. 



out'er, add, (2) morphologically the 

 lower surface of the leaf of Sphag- 

 num Dill. (Horrell). 



Ox'arch {dpxVy beginning), the char- 

 acter of an OxYSERE (Clements) ; 

 oxygy'rus, sharply twisted; oxyly- 

 ph'ilus (Clements) = oxYLOPH'rLUS 

 (Warming) ; Oxylyphy'ta (Clements) 

 = Oxylophyta; Oxy'on, a heath 

 climax (w/.); Ox'yphytes, plants 

 which show a want of oxygen in 

 the soil, with low chresard {id.); 

 Ox'ysere (+ Sere), a hydrosere 

 with acid land contents {id.). 



P i'ons, = phosphorus ions ; cf. pH, 

 hydrogen-ion concentration of soil 

 to plant distribution ; neutrahty 

 is pH7. 



Pj, pure line. 



pachycle'ma (kA^/xo, a twig), with 

 stout branches ; pachygy'rns, 

 coiled in thick whorls. 



Pach'yte {TTaxvTTjs, thickness), the 

 secondary region of the stem, 

 composed of secondary phloem 

 and xylem with liber (Van Tieghem); 

 cf. Endome, Exome. 



palaeotrop'ic, cf. Paleotropic. 



Parecology (Seward), cf. Paleo- 

 ecology (Clements) ; pale'ic, past 

 or fossil ; Paleobotany ( + Botany), 

 fossil plants as a study ; Paleo- 

 ecol'ogy ( + Ecology), the ecology 

 of geological periods ; paleophyt'ic 

 {(f>vT6v, a plant), relating to the 

 vegetation of Paleozoic times char- 

 acterized by pteridophytes 

 (Clements) ; Pal'eosere (-f Sere) 

 or Pter'osere, the Eosere or plant 

 succession in the Paleozoic Age 

 {id.); Pale'ostrate (+ Strate), a 

 definite paleophytic Eostrate {id.) ; 

 paleotrop'ic, belonging to the tropics 

 of the Old World, Asia, Africa and 

 N. Australia, cf. neotropic (Camp- 

 bell) ; Paleozo'ic (,?a>ov, an animal), 

 a geological term used to specify 

 formations in which the oldest 

 fossils occur. 



Paludoph'ilae («^iAea>, I love), algae 

 with thin filaments, or unicellular 

 green algae (IvanofF). 



Panaschier'ing, an enzyme-produced 

 variation of leaf-coloration marking 

 (Kiisten). 



panmict'ic, adj. from Panmixia. 



Papil'la, Recep'tive, of Phytophthora 

 he Bary, cf. Manocyst. 



Paracycada'Ies, Wieland's term for 

 Proangiosperms. 



parag'ynous (ywT^, a woman), applied 

 to such antheridia or male organs 

 as grow up the side of the oogonium 

 of a fungus and pierce it there 

 (Murphy). 



Par'alysers {napaXvais, palsy), en- 

 zymes which inhibit action ; cf . 



ACTIVATGRS. 



Paramas'tigote {fidoTi^, fidariyos, a 

 whip), a flagellate having one 

 principal flagellum and one short 

 and accessory; Paramylum ( + 



454 



