Phyllobiology 



(SUPPLEMENT) 



Plasm-sac 



a constituent of the pigment PHY- 

 COCHROME (Gaidukov). 



Phyllobiol'ogy ( + BIOLOGY), the bi- 

 ology of tho leaf, in its widest 

 sense ; adj. phyllobiolog'ic ; Phyl- 

 loclad'ium, add, (2) a thalline out- 

 growth of a Lichen (Lindsay ) ; Phyl'- 

 lophyte (<f>6\\ov, leaf), a plant pos- 

 sessing leaves or leaf-like organs 

 (Hansgirg) ; phyllop'odous, used 

 of the genus ffi&racium when the 

 radical leaves are in full vigour at 

 the period of flowering ; phyllo- 

 siphon'ic ( + SIPHONIC), the tubular 

 central cylinder of the higher 

 plants, where leaf-gaps are con- 

 stantly present (Jeffrey) ; the 

 condition in Phyllosi'phony ; Phyl'- 

 lotype (TUTTOS, a type), a type of 

 leaf ; Phyl'lula, H. Gibson's term 

 for that stage in the embryo of 

 vascular plants at which the first 

 leaf and root appear (Parker) ; 

 Pnyl'lule, used for the free portion 

 of the pulvinus, in Pinus (Mas- 

 ters). 



Pbyterls (e/uj, strife), plant migra- 

 tion and competition (Clements) ; 

 Phy'to al'bumin, see ALBUMIN ; 

 Phytoben'thon(e / j'0os, depth), vege- 

 tation of the depths (Forel) ; 

 Phytog'amy (yA/*os, marriage), 

 cross-fertilization of flowers (A. 

 Gray) ; Phy'togen (7^0?, race), 

 a vital centre (Fermond) ; 

 Phytogeogen'esis (777, the 

 earth, 7^eiris, beginning), the 

 origin of plants in geologic time 

 (Kuntze) ; Phytogeog'rapher 

 (yp&(f><i), I wrote,) an expert on 

 plant-distribution ; Phytogonid'ium 

 ( + GONIDIUM) ; an immobile goni- 

 dium, capable of independent 

 germination (A. Braun) ; Phyto- 

 lithol'ogy, (2) the science of plant 

 distribution as affected by soil or 

 rock ; Phyto'ma, pi. Phyto'mata, 

 the vegetative body or substance 

 of all plants (A. Braun) ; Phytom'- 

 etry (nerpov, a measure or stan- 

 dard), a comparison between plants, 

 or the different plans of their 

 growth; Pnytomorpho'sis(,u6p0w(ris, 



a shaping), any change induced by 

 plants ; by Appel used for galls 

 caused by plant parasites ; Phy- 

 ton'omy, (2) study of the organs of 

 plants ; cf. PHYTOTOMY (Heinig) ; 

 PHytopalaeontol'ogist = PALAEO- 

 BOTANIST ; Phytopleu'ston( + PLEU- 

 STON), plants which are lighter than 

 the surrounding water, and con- 

 sequently float on the surface ; 

 Pbytostrotes [trisy 11. ], Phytostro'tae 

 (orpttros, spread), distributed as 

 surface plankton (Clements). 



Picnid'ium = PYCNIDIDM. 



Pileola, add, (4) the plumule in 

 grasses (Van Tieghem). 



pisa'ceus (pisum, pea), pea-green, the 

 colour of the unripe seeds (Hayne). 



Place-con'stant, an invariable factor 

 of plant-life in a given locality ; 

 ~ -condition, or ~ -habit, the sum 

 of these under varying conditions ; 

 /-'-mode, the prevalent condition 

 of size, number, colour, etc., of 

 organs of a plant in a given locality 

 (Shull). 



placen'tary, relating to the placenta ; 

 Placeu'toid (etSoy, resemblance), 

 organs described by Chatin as oc- 

 curring in the anthers of certain 

 Dicotyledons to assist in the dis- 

 persion of pollen. 



Plac'oplast (TrXaoTdj, moulded), elaio- 

 plasts attached to the inner surface 

 of the margin of the chromophores 

 in certain Diatoms (Meresch- 

 kowsky). 



Plad'oboles [trisy 11.], Pladob'olae 

 (" irXdSos, moisture, -/3o\k, thrown"), 

 plants distributed by the action of 

 damp (Clements). 



Plank'tophyte (^urdi/, a plant), a plant 

 forming an integral part of the 

 plankton (Forel). 



Plant-plankton (+ PLANKTON), the 

 same as PHYTOPLANKTON ; Plant'- 

 ling, a small plant, a product of 

 recent germination (S. Moore). 



Plasmatogennyllcae (yewdw, I beget, 

 ^yrj j = materia), Radlkofer's term 

 for Angio^perms and Gymno- 

 sperms ; Plasm-sac ( + SAC) of 

 Diatoms, a colourless layer of pro- 



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