explanate 



Eye 



~ of protoplasm, the normal con- 

 dition when it is impermeable 

 to cell-sap, the opposite of con- 

 traction, when it is flaccid and 

 permeable. 



ex'planate, fxplana'tus (Lat., flattened 

 out), spread out flat. 



expul'sive ( erpttlsus, driven out) 

 Fruits, fruits which forcibly ex- 

 pel their seeds. 



exquisi'tus J (Lat., choice), used of 

 parts larger or more highly coloured 

 than usual, as Bracteac exquinitae; 

 cf. COMA. 



exscul'ptus (Lat., carved out), showing 

 small depressions as though dug 

 out, as the seeds of Anchnsa. 



exsert', exsert'ed, exsert'us (Lat., pro- 

 truded), protruding beyond, as 

 stamens beyond the tube of the 

 corolla. 



Exsicca'ta (exsiccatu*, dry), dried 

 plants, usually in sets for sale or 

 subscribers, frequently with printed 

 tickets. 



exstip'ulate, exstl^ida'tun (ex, priv., 

 + STIPULA), wanting stipules. 



exsuc'cous, exsuc'cus (Lat.), juiceless. 



Extensibility (extensus, spread out), 

 having the property of stretching. 



extenua'tus (Lat., thinned), a sy- 

 nonym of VIRGATUS (Henslow). 



exten'sus (Lat.), spread out. 



exte'rior (Lat., outer), outer ; in the 

 flower sometimes = ANTERIOR. 



extern' al, extern'tis (Lat.), outward ; 

 <~ Sheath, a modification of the 

 bundle-sheath, stated to occur in 

 Ferns (Russow). 



Ex'tine (extimus, outside + ine), the 

 outer coat of a pollen-grain. 



ex'tra (Lat.), without, beyond, as 

 ex'tra axill'ary, ~ -axiUa'ri-f, be- 

 yond, or out of the axil ; ~ 

 cell'ular, outside a cell ; ~ fas- 

 cic'ular, outside the vascular 

 bundles ; ~ flor'al, beyond the 

 flower, as some nectaries ; <~ 

 folia' ceous, away from the leaves, 

 or inserted in a different position 

 from thm ; ~ mat'rical, outside 

 of a nidus or matrix ; <~ me'dian, 

 beyond the middle ; ~ sem'inal, 



r 



outside the seed, as ~ ~ Devel'op- 

 ment, following the sowing of the 

 seed, as the escape of the embryo, 

 etc. ; ~ ste'lar, the ground-tissue 

 outside the central cylinder. 



Extrameabil'ity (extra, beyond, mea- 

 bilix, penetrable), the capacity of 

 protoplasm to permit substances to 

 pass outwards from its vacuoles 

 (Janse). 



extra'rius (Lat., outward), placed on 

 the outside. 



extratrop'ical (extra, without, + 

 TROPIC), beyond the tropics, to the 

 north or south of them ; extrava- 

 gi'nal (vagina, a sheath), beyond 

 or outside the sheath, applied to 

 branches springing from buds, 

 which break through the sheath of 

 the subtending leaf, chiefly in 

 grasses ; Extravasa'tion (ra.s-, a 

 vessel), unnatural flow of a liquid 

 from a tissue or organ, as the 

 ' ' bleeding " of vines. 



ex'trorse, extror'sus (exteros, on the 

 outside, versus, towards), directed 

 outward, as the dehiscence of an 

 anther. 



ex'tus, a modern term = EXTRA ; 

 similar in form to intus, but not 

 classic Latin. 



Exuda'tion(e.eJoor exsudo, I sweat), 

 the transpiration of liquids from 

 hydathodes, etc., as seen on the 

 leaf-tips of Monocotyledons. 



exunguic'ulate (ex, priv. imgula, a 

 claw), without a claw (Crozier). 



exu'tive (exutus. drawn off), applied 

 to seeds wanting the usual integu- 

 ment. 



Exu'viae (Lat., stripped off clothing), 

 cast off parts, as shed scales ; Exu- 

 via'tion, the operation of shedding 

 effete material. 



Eye, (1) a gardener's name for an un- 

 developed bud ; (2) the persistent 

 calyx of a pome, cf. CROWN ; (3) a 

 conspicuous spot in a flower, as a 

 blotch of colour ; ~ Spot (1) a 

 coloured spot in a motile gamete 

 or spore, which is sensitive to 

 light ; (2) markings on the silkious 

 valve of Coscinodiscus, consisting 



97 



