Hypnetum 



(SUPPLEMENT) 



inhibited 



Hypne'tum, a plant-association com- 

 posed of Mosses, especially of 

 Hypnum, and its allies. 



Hyp'noplasy (TrXdo-w, I shape), arres- 

 ted development due to various in- 

 hibiting reactions, which prevent 

 the cells or tissues attaining 

 normal size (Kuster) ; Hyp'no- 

 sporange (+ SPORANGE), a pro- 

 duct of the modification of the 

 root of Botrydium, a sporangium 

 which produces zoospores after a 

 resting period (Rostafinski). 



Hy'poachene ( + ACHENE), an achene 

 from an inferior ovary (Villari) ; 

 Hypoascid'ium ( + ASCIDIUM), a fun- 

 nel-shaped growth, the inner sur- 

 face corresponding with the lower 

 surface of the metamorphosed leaf 

 (C. de Candolle) ; Hyp'oblast = 

 HYPOBLASTDS ; hypoder'mal Cell, 

 the apical cell of the nucellus giving 

 rise to the embryo-sac ; hypoder^ 

 micZone, Bastit's termf r structure 

 described by him in the scales of the 

 rhizome of certain Mosses distinct 

 from the bundle in the mid-rib ; 

 Hypog'yny, the condition of pos- 

 sessing hypogynous flowers ; hypo- 

 pel'tate ( + PELTATE) applied to a 

 phyllome having the base of the 

 limb on the inferior face ; c.f. EPI- 

 PELTATE (C. de Candolle) ; Hy'po- 

 physe, ~ Cell, = HYPOPHYSIS ; hy- 

 pophyllop'odous (<f>v\\ov, a leaf, 

 irovs, a foot), radical leaves present 

 when flowering, but not numerous ; 

 used of certain Hieracia ; cf. PHYL- 

 LOPODOUS ; Hy'posperm (O-TT^UCI, a 

 seed), the lower part of an ovule 

 or seed, below the level where the 

 integument becomes free from the 

 nucellus (F. W. Oliver) ; Hy'po- 

 state (o-rdo-ts, a standing), = HYPO- 

 SPERM ; hypostom'atous, stomata 

 confined to the lower surface ; Hy'- 

 pothece = HYPOTHECIUM. 



Hyp'sium, or Hyp'sion (C^t, aloft), 

 succession of plants by elevation 

 (Clements). 



hysterogenet'ic = HYSTEROGENIC ; Hy- 

 st'erostele ( + STELE), a stele which 

 is supposed to be reduced in struc- 



ture, as in Hippuris and Potamo- 

 geton (Brebner). 



Hystrel'la (vo-Tepij, the matrix), a 

 synonym of CARPEL. 



idioandrospor'ous (t'5ios, peculiar, + 

 ANDROSPORE), when dwarf -males 

 of Oedogoniaceae are produced 

 from zoospores contained in certain 

 cells of neuter individuals (Witt- 

 rock) ; Idiot' ery (re/ms, a monster), 

 Gubler's term for a monstrosity 

 which is peculiar to the individual; 

 cf. TAXITERY; idiotyp'ic (TUTTOS, a 

 type), sexual (Radlkofer) ; the 

 condition in Idiot'ypy; cf. ZELO- 

 TYPIC. 



Imniotiflor'ae (immotus, motionless, 

 Jlos, floris, a flower), Delpino's 

 term for wind - fertilized plants 

 whose flowers are steadily fixed. 



Impregnating Tube, an outgrowth 

 from the antheridium of Pythium, 

 which penetrates the peripiasm to 

 the surface of the oosphere. 



Impregnation, generative, the fusion 

 of the generative nucleus with the 

 egg ; vegeta'tive <~ , StrasVurger's 

 term for the fusion of the polar 

 nuclei, either with each other or 

 with one of the generative 

 nuclei. 



Incrusta'tion (incrustatio, an encas- 

 ing), fossils encased in mineral sub- 

 stance, with the actual tissue 

 wanting ; casts which give impres- 

 sions of markings or cavities, but 

 show no organic structure. 



Indehis'cence (in, negation, + DEHI- 

 SCENCE), not opening, as of fruits 

 which remain closed at maturity. 



Indimul'sin, an enzyme producing 

 indigo in the leaves of Indigofera. 



Infee'tion Lay'er, a patch of hyphse 

 near the base of the scutellum in 

 Lolium temidentum (Freeman). 



infracuta'neous (cutis, skin), bel< 

 the surface, subepidermal ; 

 frano'dal ( + NODAL), below a m 



inhibited, used by J. F. Clark fc 

 spores, not killed, but whose 

 mination has been prevented" 

 the use of certain solutions. 



332 



