TERMINOLOGY. 43 
Involucrum, Volva, Annulus, Pileus, Indusium, 
Cirrhus, Gemma, Bulbus, Propago, Gongylus, 
Glandula, Spina, Aculeus, Arista, Pilus. 
§ 27. 
Sripues, (Stipul@), are small leaves that appear 
on the stem in place of the foot-stalks of the leaves. 
They are sometimes of a quite different shape from 
the proper leaves, but sometimes no way different, 
except in situation and size. ‘They may be distin- 
euished by the following terms. _ | 
1. Double, (geming), when two are present, which 
always stand opposite ; fig. 27, 30, 32. 
2. Solitary, (solitari@), when a single stipule. 
stands upon one side of the leaf footstalk. 
3. Lateral, (Jaterales), when they stand at the 
erigin of the petiolus, fig 27, 30, 32. 
4 Under the petiolus, (extrafoliacee), when they 
stand somewhat under the origin of the petiolus. 
5. Above the petiolus, (intrafoliacee), when they 
stand somewhat above the originof the petiolus. 
6. Opposite to the petiole, (oppositifolia), when 
in leaves placed alternately these stipulz stand in 
the place of the origin of the petiole, but on the 
ether side of the stem. 
7. Caducous, (caduce), when they fall off soon 
after their evolution, as in the hazle, Corylus Avel/- 
lana. 
8. Deciduous, (decidu@), when they fall off, a 
short while before the leaves, or a considerable time 
after their appearance. 
9, Abid- 
