horological 



Hydroleucite 



horolog'ical (horologicus, pertaining 

 to a clock), said of flowers which 

 open and close at stated hours ; 

 Horolo'glum Flo'rae, a time-table of 

 the opening and closing of certain 

 flowers : see Linnaeus, Phil. Bot. 

 274 ; Kerner, Nat. Hist. Plants, ii. 

 215-218. 



horten'sis (Lat, ), pertaining to 

 gardens, or only found there ; 

 Hortula'nus (Lat.) (1) a gardener ; 

 (2) belonging to a garden ; Hor'tus 

 (Lat.), a garden; ~ sic'cus, an 

 herbarium ; formerly it consisted 

 of volumes with dried specimens 

 glued down. 



Hose-in-hose, a duplication of the 

 corolla, as though a second one 

 were inserted in the throat of the 

 first. 



Host, a plant which nourishes a para- 

 site ; Host-plant, the same. 



Hosto'rium (hostio, I requite, ex Hens- 

 slow) = HAUSTORIUM. 



hu'mi (Lat.), in or on the ground. 



hu'mifuse, humifu'sus (humus, the 

 ground, fusus, spread), spread on 

 the surface of the ground ; humi- 

 stra'tus (stratus, stretched out), laid 

 flat on the soil. 



bu'milis (Lat.), lowly. 



Hu'mor (Lat., moisture) = SAP. 



Hu'mulin, the oleoresin of the hop, 

 Humid m Lupulus, Linn. 



Hu'inus (Lat., the ground), decom- 

 posing organic matter in the soil ; 

 ~ Plants, = SAPROPHYTES ; ~ 

 Soils, garden soils enriched with 

 organic manure. 



Husk, the outer covering of certain 

 fruits or seeds ; hus'ky, abounding 

 with or consisting of husks. 



Ta.ysLcin't'hia.e,hi/acin'thus,hyacinth'inus 

 (vaKivdivos, hyacinth-coloured) (1) 

 dark purplish blue ; (2) hyacinth- 

 like in habit, a scape bearing 

 spicate flowers. 



Hyales'cent, "somewhat hyaline " 

 (Crozier) ; hy'aline, hi/ali'nus 

 (vdXivos, of glass), colourless or 

 translucent ; hyalic'olor (color, 

 colour), wanting in colour. 



Hy'aloplasm, Hyaloplas'ma (va\os, 



crystal or glass, 7rXa<r/u.a, moulded), 

 the hyaline matrix or clear and non- 

 granular portion of protoplasm ; 

 by some restricted to the ECTO- 

 PLASM. 

 Hyber'nacle,Hyberna'culum = HIBER- 



NACULUM. 



hyberna'lis = HIBERNALIS. 



Hy'brid, Hyb'rida (Lat., a mongrel), 

 a plant obtained by the pollen of 

 one species on the stigma of 

 another ; Hybrid'ity, Hybrid'itas, 

 crossed in parentage ; Hybridiza'- 

 tion, (1) the art of obtaining hybrids 

 by artificial crossing ; (2) also used 

 for the same operation occurring 

 naturally. 



Hy'dathode (vdup, water, 65os, a way), 

 Haberlamlt's term for water-pore 

 or water-gland, an organ which 

 extrudes water or other liquid ; it 

 resembles a stoma with functionless 

 guard-cells; Hydral'gue ( + Algae) 

 = HYDROPHYTES ; Hydracel'lulose 

 ( + Cellulose), see CELLULOSE ; 

 Hy'drate, a compound containing a 

 definite proportion of water in 

 chemical combination ; Hydra'tion, 

 the act of becoming chemically 

 combined with water ; hydrocar'pic 

 (/rap??, fruit), used of aquatic 

 plants which are fertilized above 

 the water, but withdraw the ferti- 

 lized flowers below the surface for 

 development, as in Vatlisneria ; 

 Hydrocel'lulose, see CELLULOSE ; 

 Hydroi'd (et5o?, like) = TRACHEID 

 (Crozier) ; hy'droger (gero, I bear), 

 water-bearing, as hy drag' era va'sa, 

 threads in a spiral vessel which 

 were formerly supposed to convey 

 fluid ; hy'drolated, combined with 

 the elements of water, by Hydrola'- 

 tion ; hy'drolysed (Averts, a loosing), 

 chemically decomposed by taking 

 up the elements of water ; Hydro- 

 1'ysis, the act of being hydrolysed ; 

 Hydroleu'cite ( + LEUCITE), Van 

 Tieghem's term for vacuoles in cell- 

 sap, which he further subdivides 

 into tanniferous <~, oxaliferous ~, 

 coloured ~ , albuminiferous ~ , in 

 accordance with their production 



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