404 



GLOSSARY OF BOTANICAL TERMS. 



Alternate. — Applied to that form of leaf- 

 arrangement in which only one leaf occurs 

 at a node. 



Alveolate. — With honey-comb-like mark- 

 ings. 



Ament or Amentum. — A scaly spike or 

 catkin. 



Amorphous. — Without definite shape. 



Amphicarpous. — Producing two kinds of 

 fruits. 



Amphigastria. — A name applied to the 

 small leaves found on the ventral surface 

 of the thallus in the Liverworts. 



Amplexicaul. — Clasping or embracing the 

 stem, as an amplexicaul leaf. 



Ampulla. — A bladder or pouch. 



Amidoplasts. — Proteid granules whose 

 functions it is to form starch grains ; also 

 called leucoplastids. 



Amphitropous. — Half-inverted. Applied to 

 the ovule when half- inverted on its 

 stalk, so that the latter appears to be at- 

 tached near the middle of the body of the 

 ovule. 



Amylaceous. — Starchy. 



Amyloid. — A substance resembling starch. 



Amvlogenic. — Starch-producing. 



Anastomosis. — Opening into each other ; a 

 tcerm applied to veins that connect with 

 each other to form a net-work. 



Anatropous. — Inverted. Applied to the 

 ovule when completely inverted, so that 

 the hilum and micropyle are brought close 

 together. 



Andr<ecium. — A term applied to the sta- 

 mens as a whole. 



Androphore. — A stalk supporting an an- 

 drcecium, or a body supporting an an- 

 theridium. 



Androphyll. — A leaf which bears pollen- 

 sacs ; a stamen. 



Anemophilous. — Literally, wind-loving. 

 Applied to those flowers which depend 

 for cross-fertilization upon the agency of 

 the wind. 



Angiocarpous. — Applied to those fungi in 

 which the hymenium or spore-bearing 

 surface is enclosed by the tissues of the 

 sporocarp. 



Anisomerous. — Unsymmetrical ; applied 

 to flowers the successive whorls of which 

 are unequal in number. 



Anisopetalous. — With unequal petals. 



Anisophyllous. — Applied to the leaves 

 of a pair or whorls when they are un- 

 equal. 



Anisostemenous. — Applied to stamens 

 when they are not of the same number as 

 the petals. 



Annular. — Ringed. Applied to cells or 

 ducts that have their walls thickened at 

 intervals with ring-like thickenings. 



Annulus. — A ring-like layer of cells sur- 

 rounding the capsule of mosses at the line 

 of separation of the operculum from the 

 body of the capsule. Also applied to 

 the row of special cells surrounding or 

 partly surrounding the sporangia in many 

 ferns. 



Anophyta — A name familiarly applied to 

 Mosses and Moss-like plants. 



Anther. — That part of the stamen which 

 bears the pollen. 



Antheridium. — The male or fertilizing 

 organ of cryptogams; the organ which 

 produces antherozoids. 



Antherozoid. — The male reproductive cell 

 ot cryptogams. 



Anthesis. — The act of flowering. 



Anthocyanin. — The dissolved coloring- 

 matter in blue flowers. 



Antholeucin. — The dissolved coloring- 

 matter in white flowers. 



Anthotaxy. — The arrangement of flowers 

 in clusters. See Inflorescence. 



Antipetalous. — Inserted opposite to, in- 

 stead of alternate with, the petals. 



Antipodal Cells. — A term applied to three 

 cells formed in the lower end of the em- 

 bryo-sac opposite to the cells constituting 

 the egg-apparatus. 



Apheliotropism. — The property which 

 some organs possess of turning away 

 from the light. 



Aphyllous. — Leafless. 



Apocarpous. — Composed of separate car- 

 pels. 



Apogamy. — The loss of power to reproduce 

 sexually. There may be either a substi- 

 tution of vegetative reproduction for 

 reproduction by sexual spores, or a substi- 

 tution of asexual spore-reproduction for 

 reproduction by sexual cells. 



Apogeotropism. — The property which some 

 organs possess of growing away from the 

 earth's centre. 



Apophysis. — The enlargement of the stalk 

 or seta just beneath the capsule in Mosses. 



Apospory. — The loss of the power to re- 

 produce by spores; when the organ ordi- 

 narily producing spores develops vege- 

 tatively. 



