GLOSSARY. 



Acaulescent. Stemless or apparently 

 so, or with the stem underground. 



Acerose. Needle-shaped; with a sharp 

 rigid point. 



Acrid. Sharp and harsh to the taste. 



Adnate. United, especially where dif- 

 ferent organs are fused. 



Akene. A dry, one-celled, one-seeded, 

 indehiscent fruit. 



Alveolate. Resembling a honeycomb. 



Ament. A catkin; a scaly spike. 



Amphitropous (ovule or seed). Half- 

 inverted and straight but with a 

 lateral hilum. 



Ampliate. Abruptly expanded. 



Anatropous (ovule or seed). Inverted 

 and straight with the micropyle 

 next to the hilum. 



Androgynous. Having both stami- 

 nate and pistillate flowers. 



Annulus. A ring, especially the ring 

 of thick-walled cells on a fern 

 sporangium. 



Apiculate. Ending in a short pointed 

 tip. 



Appressed. Lying close and flat 

 against. 



Aristate. Tipped with a stiff short 

 bristle. 



Atomiferous. Bearing minute scat- 

 tered granules. 



Auricle. An ear-shaped appendage. 



Awn. A bristle-like terminal or 

 dorsal appendage. 



Barbellate. Minutely barbed. 

 Bifid. Two-cleft. 

 Bilabiate. Two-lipped. 

 Biternate. Twice-ternate. 

 Bract. A modified reduced leaf oc- 

 curring in the inflorescence. 

 Bracteate. Having bracts. 

 Bracteolate. Having small bracts. 



Callosity. A hardened thickening. 



Callus. A hard protuberance; in the 

 grasses, the tough often hairy 

 swelling at the base of the lemma 

 or palet. 

 20 28 



Calyculate. Having bracts around 

 the flower which imitate a calyx. 



Campanulate. Bell-shaped, that is 

 cup-shaped with a broad base. 



Canescent. Hoary with a grayish 

 pubescence. 



Capillary. Hair-like. 



Capitate. Shaped like a head; col- 

 lected into a head. 



Carpel. A simple pistil or one of the 

 units of a compound pistil. 



Carpophore. The slender prolonga- 

 tion of the axis which bears the 

 ripe carpels {Umbelliferae). 



Cartilaginous. Firm and tough, car- 

 tilage-like. 



Caryopsis. A grain, that is a seed- 

 like fruit with a thin wall adherent 

 to the single enclosed seed (Poa- 

 ceae) . 



Caudex. The persistent base of an 

 otherwise annual herbaceous stem. 



Caudicula. The thread-like or strap- 

 shaped stalk of a pollinium. 



Caulicle. The stem-like part of an 

 embryo, the hypocotyl. 



Cauline. Pertaining to the stem; on 

 the stem. 



Cernuous. Nodding; slightly droop- 

 ing. 



Cespitose. Growing in tufts; forming 

 mats. 



Chaff. A small thin bract becoming 

 dry and membranous. 



Chartaceous. Papery. 



Chlorophyll. The green coloring- 

 matter found in plants. 



Ciliate. Fringed with hairs on the 

 margin. 



Ciliolate. Minutely ciliate. 



Circumscissile. Opening by the for- 

 mation of a circular line of cleavage 

 and the falling off of the top like a 

 cap. 



Clavate. Club-shaped, gradually 



thickened upwards. 



Cleft. Margin indented half way to 

 the midrib or more, especially if 

 the incisions are sharp. 



