pronate 



Frotalbumose 



duct of tube-germination of a spore, 

 which abjoints a few spores unlike 

 the mother-spore,and then perishes. 



pro'nate, "inclined to grow prostrate" 

 (Crozier). 



prone, pro 1 mis (Lat., leaning forward), 

 lying flat, especially the upper face 

 downward. 



Pronu'cleus (pro, for, + NUCLEUS), the 

 nucleus of a conjugating gamete, 

 which on coalescing with another 

 pronucleus forms the germ-nucleus. 



Prop, used by Withering for STIPULE. 



propaculiferous (propago, a set or 

 layer, fero, I bear), bearing off-sets, 

 as Sempervii'um ; Propa'culum, a 

 runner or off-set. 



prop'agative, tending to increase by 

 asexually produced growths, as 

 gemmae, soredia, etc. 



Propa'gulum (dim. of propago, a set 

 or layer)7 (1) an off-set ; (2) in 

 Lichens, the powdery organs 

 which constitute the SOREDIA ; 

 Propa'go, pi. Propa'gines, (1) a 

 bulblet ; (2) the branch bent down 

 for layering. 



propen'dent, propen'dens (Lat.), rang- 

 ing down. 



prop'er, true, or correctly under- 

 stood ; ~ Juice, any characteristic 

 " fluid " of a plant, as the " milk " 

 of lettuce, etc. 



Properimer'istem (pro, for, + PERI- 

 MERISTEM), a synonym of PERI- 



MERISTEM. 



Proph'asis, pi. Proph'ases (irpo, 

 before, (pdcns, an appearance), the 

 changes in the mother-nucleus 

 previous to division, including the 

 formation of the nuclear plate and 

 the longitudinal division of the 

 chromosomes ; Prophlo'em ( + 

 PHLOEM), (1) PROTOPHLOEM ; (2) the 

 cylinder of elongated cells with 

 thickened walls, occurring in the 

 seta of some Mosses round the 

 protoxylem ; Pro'phylluni(0i>AAoi/, a 

 leaf), the bracteole at the base of 

 an individual flower, in German 

 " Vorblatt' ' ; prophylla'tus, provided 

 with prophylla ; prophyl'loid (ddos, 

 resemblance), like prophylla. 



Proph'ysis = PROSPHYSIS. 



Prophy'togams (irpo, before, <j>vrov, a 

 plant, yd/j.os, marriage), Focke's 

 proposed name for vascular Cryp- 

 togams. 



prop'rius (Lat., special, peculiar), 

 partial. 



Proscol'la J (""pos, close to, KoAAa, 

 glue), a viscid gland on the upper 

 side of the stigma of Orchids, to 

 which the pollen-masses become 

 attached, the RETINACULUM. 



Prosem'bryum (vrpoj, near, e/mfipvov, 

 an embryo), = PERISPEKMIUM ; 

 Prosench'yma (eyx 1 '^, an infusion), 

 tissue of lengthened cells with 

 tapering ends which overlap ; adj. 

 prosenchy'matous ; Prosenthe'sis 

 (ev6ri<ris, imposition), the quantity 

 which determines the divergence 

 between two successive whorls in 

 a shoot (Pax). 



Pros'physes (</>uo/xcu, to grow with), 

 "abortive pistillidia of the muscal 

 alliance" (Lindley) ; Prosoplec- 

 tench'yma ( + PLECTENCHYMA), a 

 modification of hyphal tissue 

 (Lindau). 



Prosporan'gium (vrpo, for ; a-rropa., 

 a seed ; ayyeiov, a vessel), (1) in 

 Chytridieae, etc., a vesicular cell 

 whose protoplasm passes into an 

 outgrowth of itself, the sporangium, 

 and then divides into swarm- 

 spores ; (2) in Phaeosporeae, an 

 early formed sporangium, formed 

 of a layer of the filament combined 

 with an outgrowth (Kuckuck) ; 

 proste'lic ( + STELE), when an axis 

 consists of a single concentric 

 bundle (Jeffrey). 



Pros'pory (Trpcoios, precocious, (nropa, 

 a spore), abbreviated from PROIOS- 

 PORY, the precocious development 

 of spores in certain Algae ; 

 Pros'tady (<rrd5tos, steady), the 

 early fruiting stage described 

 above. 



pros'trate, prostraf&us (Lat., thrown 

 to the ground), lying flat. 



Pros'typus (irpoffrviros, embossed) = 

 PvAPIIE. 



Protal'taumose = PROTO-ALBUMOSE. 



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