halophilus 



(SUPPLEMENT) 



Helotism 



which shuns salt; haloph'ilus 

 (0tXe'o7, I love), salt-loving ; Halo- 

 phy'ta (<t>vr6v, a plant), salt plants ; 

 Halophy^tia, plant associations of 

 salt marshes. 



Haplan'the (dvdT], a blossom), Hux- 

 ley's term for the hypothetic 

 anemophilous type of the flowers 

 of Gentianaceae ; cf. Journ. Linn. 

 Soc., Bot. xxiv. (1887), 112, 122; 

 Haplobacte'ria( + BACTERIA), simple 

 bacteria, colonies and cells in ag- 

 gregation, the product of division 

 as in Sarcina ; haplocau'lous (/cavX6s, 

 a stem), having a simple unbranched 

 stem ; haplolepid'eous, the prefer- 

 able form of APLOLEPIDEOUS ; 

 Haplomer'istele ( + MEBISTELE), 

 a simple stele consisting of 

 an axial series of tracheae sur- 

 rounded by a ring of phloem ; adj. 

 haplomeriste'lic (Brebner) ; Haplo- 

 mito'sis ( + MITOSIS), nuclear divi- 

 sion by transverse rupture (Dan- 

 geard). 



Hap'tere, MacMillan's term for HAP- 

 TERON, a holdfast; hapter'ic, of 

 the nature of a holdfast ; Hapto- 

 t'ropism (T/X^TTOS, direction), the 

 curving of tendrils and similar 

 organs (Fitting). 



harpid'ioid, (1) resembling or allied 

 to the Harpidium section of Hyp- 

 num ; (2) similarly the Lichen genus 

 Harpidium. 



Haustor'ium, (2) a structure arising 

 from the secondary nucleus of 

 Lathraea, the embryo sac contain- 

 ing two haustoria, one equatorial, 

 the other micropylar (Chodat) ; 

 Haustor'ia (pi.) appendicula'ta, 

 when they arise from a protrusion 

 of the hyphae, an appresson ; 

 ~ exappendicula'ta, when they arise 

 directly from the hyphae without 

 much contortion at the point of 

 origin ; ~ lobula'ta, lobed ap- 

 pressors. 



He'derose, a sugar contained in ivy, 

 Iledera Helix. 



Hed'ium, or Hed'ion (25os, a base), a 

 succession of plants on residuary 

 soils (Clements). 



327 



Hekis'totherm (TJKKTTOS, the smallest, 

 Bepfj-r), heat), a plant which needs 

 but little heat, and can withstand 

 long period s of darkness ( Warm ing) . 



Heleoplank'ton, or Helei'oplankton 

 (eXos, a marsh, + PLANKTON), the 

 floating vegetation of marshes, 

 which overpowers the animal 

 plankton ; it differs from Potamo- 

 plankton by less motion of the 

 water (Zimmer). 



hel'icoid Cells, terminal cells, which 

 are usually branched, of Pitho- 

 phora (Wittrock). 



heliopb/ilous, -us (0iXe'w, I love), 

 adapted to full exposure to the 

 sun ; helioph'obous (0o/3ew, I fear), 

 adapted to a very small amount 

 of light ; Heliophy'ta (<pvrbv, a 

 plant), plants adapted to full sun- 

 light ; Heliophy'tia, formations of 

 such plants (Clements). 



Helium, a marsh formation ; helo- 

 ph'ilus (0iXe?w, I love), marsh-loving ; 

 Helopny'ta (<f>vTov, a plant), marsh 

 plants (Clements). 



helminth'oid (^X/Ati/s, a worm, eWos, 

 resemblance), worm-shaped, vermi- 

 form (Heinig). 



Iielmintiiospor'oid(er5os,resemblance), 

 resembling the genus Hdmintho- 

 sporium, Pers. 



Helohy'lium (eXos, marsh, uX?/, forest), 

 a swamp forest formation ; helo- 

 hyloph'ilus (0cX^w, I love), dwelling 

 in wet forests ; Helohylophy'ta 

 (01/rov, a plant), wet forest plants 

 (Clements) ; Helolocn'mium (\6xM> 

 a thicket), a meadow thicket for- 

 mation ; nelolochinoph'ilus (0tXew, 

 1 love), dwelling in meadow 

 thickets ; Helolocnmophy'ta (<pvTot>, 

 a plant), meadow thicket plants 

 (Clements) ; Helorgad'ium (eXos, 

 marsh, 6pyhs, meadow), swamp 

 formation (Ganong) ; helorgado- 

 ph'ilus (0tXew, I love), dwelling in 

 swampy woodlands ; Helorgado- 

 phy'ta ((frvrov, a plant), plants of 

 that formation (Clements). 



Hel'otism (eiXws, a serf), Warming's 

 term for the symbiotic relations of 

 Algae and Fungi in Lichens. 



