526 



MANUAL OF BOTANY 



Arcliegoniophore. Any special part of 



the gametophyte oq which archego- 



iiia arise 

 Archesporium. The cell or cells whicli 



by division give rise to the mother 



ceils of the spores 

 Archicarp, 70, 82 

 Aril. A third iutegument which grows 



completely or partially over the seed 



springing from its base 

 Ascending sap, 416 

 Ascidiu. The pitchers of such plants as 



Sarraceuia, Nepenthes, (fcc. 

 Ascocarp, 83 

 Ascogouium, 83 

 Ascospores, 87 

 Ascus, 82 



Asexual reproduction, 513 

 Ash of i)lants, 436 

 Astely = schizostely 

 Asymmetrical flou-ers. Tliose wliich i 



cannot be divided into similar halves 



by any vertical section 

 Autoecious, 90 

 AuxiUary cells, 51 

 Ausospores, 41 

 Axil. The angle formed by the junction 



of leaf and stem 

 Azy go spores, 55, 78 



Basidia, 90 



Basidiospores or basidiogonidia, 92 



Bicollateral bundles. Tliose which have 

 a strand of bast both before and be- 

 hind the strand of wood 



Bye-products of metabolism, 461, 464 



Caducous sepals. Those which become 

 detached from the flower when the 

 flower-bud opens 



Callus. The material which is developed 

 upon the surface of sieve-plates. Also 

 applied to the tissue which grows over 

 and covers wounds made in a stem or 

 root 



Campulotropous ovule. One whose nu- 

 cellus is curved so that the micropyle 

 is placed close to the hilum 



Capillitium, 77 



Capitulum (of Chara), 63 



Carpogonium, 82 



Carpophore. The part of the axis of the 

 flower which is between or above the 

 carpels, and to which they are at- 

 tached 



Carposporaugia, 51 



Caruncles = strophioles 



Catabolism, 433, 460 



Caudicles. The stalks of the poUinia in 

 the Orchidacese 



Cell-wall, composition of, 421 



Chalaza. Tlie point at which the vas- 

 cular bundle reaches the ovule 



Chemiotaxis, 499, 500 



Chlamydospore, 78 



Chlorophyll, 440, 462 



Chloroplasts. The chlorophyll corpus- 

 cles, 431 



Chlorotic plants, 463 



Chorisis. An increase in the number of 

 the parts of a floral whorl due to the 

 division or sphtting of its primary 

 members 



Chromatophores =chromoplasts 



ChromoplaUs. Small protoplasmic bodies 

 fomid in certain cells and containing 

 colours other than green 



Cilia. YibratUe fllaments of firotoplasm 

 found on zoospores, gametes, &c. Also 

 applied to the inner row of teeth of 

 the peristome of mosses 



Ciliarj- motion, 507 



Circumuutation, 476 



Cirrhus. A tendi'il 



Cladode. A branch which in shape re- 

 sembles a leaf 



Cleistogamy, 521 



Cleistothecium, 83 



Ccenobium, 54 



Coenocyte. A plant bod\- in which tlie 

 constituent protoplasts are not sepa- 

 rated from each other by cell-walls. 

 Usually a common cell-wall invests 

 the whole 



Cohesion. The condition of union or 

 freedom of the separate members of 

 the whorls of the floral leaves 



Cohorts, 6 



Collenchyma. A parenchymatous or 

 prosenchymatous tissue, the cells of 

 which are thickened at their angles 



Columella, 77, 118 



Comose. A term applied to seeds which 

 bear a tuft of hairs 



Conceptacles. Depiressions in the sm-face 

 of the thallus of certain algse in 

 wliich the reproductive organs are 

 borne, 43 



Conjugalioa. The fusion of two similar 

 gametes, 517 



Coriaceous. Leathery — applied to leaves 



CormojJhyte. A plant which possesses 

 stem and leaf 



Corona, i A cujj-shaiieil bo<ly formed by 

 the lateral union of scales borne upon 

 the perianth leaves at the junction of 

 claw and limb, as in the Daffodil 



Cryptostomata, 45 



Crystalloids, 451, 452 



Cujjule. The involuci'c of the female 

 flower of the Oak, Hazel, &c. 



Cushion. The central thick region of 

 the prothallus of the fern, 136, 137 



Gystocarp, 32, 51 



Cytase, 455, 457 



Deduplication. A doubling of the num- 

 ber of parts of a floral whorl 

 Definitive nucleus, 182 

 Diageotropism, 494 

 Diaheliotropism, 498 

 Dialys'.ely. A variety of polysteJy in 



