chasmophilous 



Chrysohermidin 



loving crannies or chinks in rocks ; 



Chasmoph'ily, the condition of 



cranny-loving plants, 

 cheilanth'oid {d8os, resemblance), 



allied to or resembling the fern 



genus Cheilanthes Sw. 

 Cheilocystid'ia, pi. (+ Cystidium, 



bodies of unknown function, from 



the face of the lower edges of gills 



in Agarics (Buller) ; c/. Pleuro- 



CYSTIDIA. 



chemosjmthet'ic {avvdijois, com- 

 position), responsive to chemical 

 action; cf. photosynthetic. 



Cher'nogens, continental soils 

 developed under a small range of 

 rainfall, permanently grass-covered, 

 as the Russian black soils. 



Chias'ma {xiaofia, two lines crossed), 

 of four chromosome strands, two 

 fuse at crossing, one strand uniting 

 endwise with the other (Janssens) ; 

 Chias'motype (+ Type), the basis 

 of " crossing-over " (Chodat). 



Chil'Iing, exposure of perennial plants 

 to wintry cold, as necessary for 

 early growth in the following spring 

 (Coville). 



Chimae'ras : hyper ^, is due to similar 

 fusion producing abnormal fruits 

 (Harshberger) ; nu'clear '*-, pi. 

 exchange of chromosomes (Lotsy) ; 

 perichaetial ~, having a skin of 

 different quality from the core (Bate- 

 son) ; sectional '~, a mutant 

 arising from mixed cells ; sector'ial 

 ~, due to bud-variation in a 

 branch ; Correns adds : albopelli- 

 cula'tus, albotunica'tus, chloroti- 

 derm'is, leucoderm'is, pseudoleuco- 

 derm'is. 



Chlamydobacte'ria ( + Bacteria), bac- 

 teria having strong affinities with 

 algae (Conn) ; Chlamydomone'ta, 

 pi. communities of Chlamydomonas 

 and diatoms (Warming). 



Chloralbi'no (+ Albino), variegated 

 with green and white in the leaves 

 (Shull) ; Chloren'chym.seeCiiLOREN- 

 ciiyma; chlorococ'cine refers to 

 algae without vegetative cell- 

 division, but only by zoogonia or 

 motile gametes ; formerly termed 



" endospherine " (West) ; chloro- 

 coc'coid, resembling in habit the 

 genus Chlorococcum Fr. ; Chlorophyl- 

 Tin, cf. Chlorophyllan ; Chloro- 

 phyll'oplast (<^uAAov, a leaf ; -nXaaTos, 

 formed), a chromoplast containing 

 chlorophyll as colouring matter 

 (Janet) ; Chlorophy'ta, green 

 algae ; Chlorosta'toliths, pi. 



( + Statolith ), starch-containing 

 chloroplasts ; chlorotiderm'is 



[Sepfia, skin), with greenish-yellow 

 subepidermal layer and a green 

 core, in Arabia Linn. (Correns). 



Chorine (X0A77, bile), a base derived 

 from lecithin. 



chomophyt'ic, adj. cf. Chomophyte. 



Chondriocon'tes {kovt6^, a pole), 

 elongated forms of misochondria 

 from which chromoplasts are de- 

 rived (Guillermand). 



Chorisep'aly (+ Sepal), having the 

 sepals free ; chorolog'ic (Adyo?, 

 discourse), topographic (Riibel) ; 

 Chororogy, the study of migration 

 or area of distribution (Jaccard). 



Chott, a salt-spot in the Algerian 

 desert. 



Chromid'iosome (acD/za, a body), the 

 ultimate individual particle of 

 chromatin, either inside or outside 

 a nucleus (l^linchin) ; Chromogen'esis 

 (yev€CTt<r, origin), colour produced 

 by bacteria (Conn) ; Chromolip'oids, 

 pi. (AiTTo?, grease ; etSos, resem- 

 blance), a fatty colour allied to 

 carotin (Czapek) ; Chromone'ma 

 {vTjfjLa, a thread), a ripe chromosome 

 of an achromatic core round which 

 is wound a chromatic fibre, as in 

 Paris Linn. (Vejdovsky) ; chromo- 

 ph'ilous (^iAea», I love), readily 

 taking stain; Chro'moplast, add, 

 (2), used by Janet for a granule 

 containing chlorophyll as a colour- 

 ing matter; chromosomat'ic, re- 

 lating to chromosomes. 



Chronorogy (/c/joVo?, time; Ao'yo?, 

 discourse), the appearance of plants 

 in the history of the earth (Riibel). 



chroolepoid'Iy = chroolepoid. 



Chrysoherm'idin (+HERMIDIN), a labile 

 chromogen in Mercurialis Linn. 



428 



