archoplasmic 



arthrosporous 



PLASM ; adj. archoplas'mic ; <~ 

 Sphere = achromatic spindle. 



arctic, a term applied by H. C. Wat- 

 son to a British region, compris- 

 ing three zones, styled super-, mid-, 

 and infer-arctic zones, relating to 

 plants growing above the limits of 

 cultivation. 



arc'uate, arcuaftus (Lat.), bent like a 

 bow, curved ; arcua'to-areola'tus, 

 divided into spaces by curves ; <~ 

 contort'us, forming a depressed 

 spiral, as in some legumes. 



ArdelTa (a/aSw, I sprinkle), small 

 apothecia of certain lichens, as 

 Arthonia, seemingly dusty. 



A'rea (Lat., a space), (1) a bed in 

 botanic gardens ; (2) in Diatoms, 

 the surface of a valve when circular 

 and destitute of a stauros ; (3) J the 

 receptacle of certain Fungi (Lind- 

 ley). 



arena' ceous, arena'rious, arena' rius, 

 areno'sus (arena, sand), growing in 

 sandy places. 



Are'ola (Lat. , diminutive of AREA) ; (1) 

 a space marked out on a surface j 

 (2) a small cell or cavity; (3) a 

 tessellation in the thallus of some 

 Lichens ; ar'eolar, ar'eolate, areola'- 

 tus, marked with areolae, divided 

 into distinct spaces ; Areola'tion, in 

 Mosses, the arrangement of the 

 cells. 



arg'entate, argent' em (Lat., silvery), 

 silvery as to tint and lustre ; 

 argenta'tus (Lat.), silvered. 



argilla'ceous, -ceus (Lat.), clayey, 

 growing in clay, or clay-coloured ; 

 argillo'sus (Lat.), living in clayey 

 places. 



arg'os, in Greek compounds = white ; 

 in Latin, candidus. 



argute', argu'tus (Lat.) sharp, as 

 argute' -serra'tus sharply serrate. 



arg'yros, in Greek compounds = sil- 

 very ; Lat., argenteus. 



arhi'zal, arhi'zus (a, without ; pla, a 

 root), rootless, wanting true roots ; 

 Arhizoblas'tus J (jSXcKrros, a germ), 

 an embryo which has no radicle. 



Ar'icine, an alkaloid from cinchona 

 bark, obtained from Arica, in Chili. 



ari'nus (apprjv, male), Necker's suffix 

 to words enumerating stamens, in- 

 stead of the Linnean -androus. 



A'ril, Arill'us (Fr., arille), an expan- 

 sion of the funicle, arising from the 

 placenta, and enveloping the seed, 

 mace is the aril of the nutmeg ; 

 ar[illate, arilla'tus, possessed of an 

 aril ; arilliform'is J (forma, shape), 

 bag-shaped ; A'rillode, Arillo'dium, 

 a false aril, a coat of the seed, and 

 not arising from the placenta. 



Arls'ta (Lat.), an awn, the beard of 

 corn ; arist'ate, arista' tus, awned ; 

 aris'tulate, aristula'tus, bearing a 

 small awn. 



aristolochia'ceous, resembling the 

 genus Aristolochia, Tourn. 



Ar'ma (Lat.), Ar'mature, any kind of 

 defence, as prickles or thorns ; 

 armed, bearing thorns or similar 

 defence. 



armenia'ceous,armew'*'actts, (1) apricot- 

 coloured, a dull orange, named from 

 Prunus Armeniaca, Linn. ; (2) a 

 native of Armenia. 



Armill'a (Lat., bracelet), the frill of 

 the stipe of Agarics left attached 

 on the expansion of the pileus, at 

 first it forms a covering of the 

 hymenium. 



Arnat'to, also written, Arnotto and 

 Annotto, the red colouring matter 

 from the pulp of the fruit of 

 Bixa Orellana, Linn. 



Aro'ma (Lat., spice), the perfume of 

 a plant ; aromatic, -cus, possessing 

 a spicy smell or taste. 



arrect', arrect'us (Lat. set upright), 

 stiffy erect. 



Arrest', sporal, see SPORAL ARREST. 



arrhi'zous = ARHizous, etc. 



Ar'row-head'ed, ~ shaped, barbed like 

 an arrow, sagittate. 



arth'onoid, of the form or consistence 

 of the apothecia in the genus 

 Arthonia, Ach. 



Arth'rospore (ap6pov, a joint, ffiropd., a 

 seed), one of spores like a chain of 

 beads, formed by fission; arthro- 

 spor'ic, arthrosp'orous, applied to 

 Schizomycetes, in those species 

 which have no endogenous spores 



