Half 



hederaceous 



portions ; (2) sometimes it means 

 one-sided, dimidiate; ~ anat'ropous, 

 amphitropous ; ~ Breed, the pro- 

 duct of a cross-fertilization ; ~ 

 cor'date, heart-shaped on one side, 

 r*> cylin'dric, applied to a stem 

 flattened on one side ; ~ equ'itant, 

 partially equitant ; ~infe'rior, used 

 of an ovary when the stamens are 

 perigynous ; ~ monopet'alous, the 

 petals united, but so slightly as to 

 separate easily ; <- moon-shaped, 

 semilunate, crescent-like ; ~net'ted, 

 when of several layers, only the 

 outer is netted, as the conn of 

 Gladiolus communis, Linn. ; ~ stem- 

 clasp'ing 1 , partly amplexicaul ; ~ 

 supe'rior, the same as half- inferior ; 

 <~ terete', flat on one side, terete on 

 the other : Half-Galtonian-curve, 

 see NEWTONIAN CURVE. 



Halm, see HAULM. 



halona'tus (aXws, the disk of the 

 sun, halo), when a coloured circle 

 surrounds a spot. 



haloph'ilous (aX?, dXos, salt, the sea, 

 <iX^w, I love), salt-loving ; Hal'o- 

 phyte (<pvrbv, a plant), a plant 

 which grows within the influence 

 of salt water ; adj. halophyt'ic. 



Hal'ospore, an error for HAPLOSPORE. 



halved, dimidiate. 



ha'mate, hama'tus (Lat., hooked), 

 hooked at the tip ; ha'mose, 

 ha'mous, hamo'mx, hooked ; ham'u- 

 late, hamula'tus ; liam'ulose, 

 hamuto'sus, beset with small hooks ; 

 Ha'mulus, a hooked bristle in the 

 flowers of Uncinia ; Ha'mus, a 

 hook. 



Han' die, the manubrium of the anthe- 

 ridium of Characeae. 



hapaxan'thic, hapaxan'thous (dVa, 

 once, dvdos, a flower), used of herbs 

 having a single flowering period. 



haplochlamyd'eous (air\6os, single, 

 xXa/iws, a mantle), monochlamy- 

 deous, having a single perianth ; 

 haplogen'eus (yevvau, I bring forth), 

 = heteronemeus ; Haplogonid'ium 

 ( + GONIDIUM), a Lichen gonidium 

 resembling Protococcus ; haploper- 

 ist'omous (+ PEKISTOME), used of 



Mosses with a peristome of a single 

 row of teeth ; haplopet'alous, -Ins 

 (ireTaXov, a flower leaf), with one 

 row of petals ; Hap'lospore (cnropd, 

 seed), a simple spore in Lichens ; 

 haploste'monous(crT?] / ixwj', a stamen), 

 with a single series of stamens 

 in one whorl. 



Hap'teron, pi. Hap'tera (airru, I fasten, 

 upon), Warming's term for organs 

 of attachment which do not contain 

 vascular tissue, as in Podosto- 

 maceae. 



Haptot'ropism (awrofiai, to attach 

 oneself to), curvature induced in 

 climbing plants by the stimulus of 

 a rough surface (Czapek). 



hard'y, enduring without protection ; 

 not injured by the climate. 



has'tate, hftsta'lus (hasta, a spear), 

 halbert-shaped, sagittate, with 

 the basal lobes turned outward ; 

 has'tiform (forma, shape), spear- 

 shaped, hastate ; has^tile, has- 

 ti'lis (Lat., like the shaft of a 

 spear), used for hastate. 



hatch'et-shaped, dolabriform. 



Haulm, Halm, Haum, (1) the culm of 

 grasses ; (2) the stem of herbaceous 

 plants. \ 



Haustor'ium (haustor, a drawer), a 

 sucker of parasitic plants ; used by 

 Komarow for an appendage of peri- 

 thecia. 



Haut'schicht (Ger. ), the layer of cell 

 protoplasm known as ECTOPLASM. 



Head (1) an inflorescence ; the 

 capitulum of Composites ; (2) for- 

 merly used for the theca of Mosses ; 

 Cell, the capitulum of Chara ; 

 head'ed, capitate. 



Eeart, used by Grew for the centre, 

 as heart of oak, the duramen ; ~ 

 shaped, cordate ; ~ Wood, the 

 duramen. 



hebecar'pus (ijp-rj, puberty, Kapirbs, 

 fruit), having the fruit covered 

 with downy pubescence. 



heb'etate, hebeta't-us (Lat., blunted), 

 having a dull or blunt or soft 

 point. 



hedera'ceous, liedvra' cms (Hedera, 

 ivy, + aceous, (1) pertaining to 



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