58 TRIANDRIA. QCL. III. 



DIGYNIA. 



11. ANTHOXA'NTHUM. SPRING-GRASS. 

 Calyx of two egg-shaped, pointed, concave chaff-scales, one- 

 flowered. Corolla of two equal husks, shorter than the calyx, 

 awned on the back. An internal corolla, or nectary, consisting 

 of two egg-shaped, minute scales. Stamens hair-shaped, longer 

 than the corolla ; anther oblong, forked at both ends. Germen 

 superior, oblong. Styles short ; stigmas long, downy. Seed one, 

 nearly cylindrical, tapering at each end. Name from ant/ios, a 

 flower, and xanthos, yellow. 16. 



1. A. odordtum. Sweet-scented Spring-grau. Panicle spiked, oblong ; 



flowers on short stalks, and longer than the awns. About a foot high : 



leaves short, pale green : panicle dense, becoming brownish yellow : 

 scales of the calyx unequal, acute, membranous, with a green bristly 

 keel : husks of the corolla obtuse, hairy, shorter than the calyx, one with 

 a short straight awn, the other with a longer twisted one : internal corolla 

 or nectary of two very small, membranous scales. The pleasant smell 

 of new-made hay is chiefly owing to this plant, which in drying emits an 

 odour similar to that of Aspernla odorata and Trifolium officinale. Pe- 

 rennial : flowers in May : grows in pastures and meadows : common. 

 This plant is a true grass, but is separated on account of its having only 

 two stamens. It is eaten by cattle. Eng. Bot. pi. 647. Eng. FL 

 vol. i. p. 97. 52. 



CLASS III. TRIANDRIA. 



Plants tearing Flowers with Three Stamens. 



Order I. MONOGYNIA. One Pistil. 

 * Flowers superior. 



1. VALERI A'NA. Corolla of one petal, five-cleft, protuberant on one 



side at the base. Seed one, crowned with a feathery pappus. 



2. FE'DIA. Corolla of one petal, five-cleft, protuberant on one side at 



the base. Capsule three-celled, crowned with the toothed calyx. 



3. CRO'CUS. Corolla of six equal segments, resembling petals; tube 



longer than the limb. Stigmas folded. 



4. TRICHONE'MA. Corolla of six equal segments ; tube shorter than 



the limb. Stigmas deeply divided. 



5. I'RIS. Corolla of six unequal segments, the three outer larger and 



reflected. Stigmas three, resembling petals. 



** Flowers inferior, chaffy. 



6. SCHCE'NUS. Chaff-scales single, in two rows, arranged in an 



imbricated spike, the outer empty. Husks none. Style simple 

 at the base, deciduous. 



7. RHYNCHO'SPORA. Chaff-scales single, arranged in a spike 



imbricated all round, the outer empty. Husks none. Style enlarged 

 at the base, permanent. 

 9. SCl'RPUS. Chaff-Kales singlo, uniform, concave, arranged in a 



