9 
Second, third class. 
IB (1). Styles 2. Graminese . . . Anthoxanthum. 622» 
— Style 1. Cyperacese. Cl. 3, 72. 
Cl. 3. Triandria. 
1. Styles 1—2 ........ 2 
— Styles 3. (Ls opp. or whorled. FI. white.) . . 79 
2. Floral envelope composed of cal. and cor. Ls opp. 3 
— FI. envelope composed of cal. and cor. Ls whorled 
Asperula. 275. 
— FI. envelope simple or suppressed. Ls altern. whorled or 0 5 
3. Cor. inf., 5-partite, white. Capsule. Seps 2. Ls entire. 
Montia. 199. 
— Cor. sup. Fr. an acliene . 4 
4. Cal.-limb developing at maturity into a feathery pappus. 
Perenn. pis ..... Valeriana. 279. 
— Cal.-limb toothed at maturity. Ann. pis Valerianella. 280. 
5 (2). FIs with a distinct perianth, not in a spike . S 
— FIs in a spike. Perianth 0 or suppressed . . 9 
6. Perianth green (sepaloid), 5-partite. FIs solitary, axillary. 
Ls acicular.Polycnemum. 486. 
— Perianth scarious, 6-partite. Rushes . Juncus. 597. 
— Perianth petaloid, coloured, with a 6-partite limb . 7 
7. Perianth irreg., almost bilabiate (rose-coloured). FIs in a 
spike.Gladiolus. 566. 
— Perianth regular ....... 8 
8. Lobes of the perianth campanulate-infundibuliform, con- 
nivent, with an elongated tube. Stigs clavate. Ls linear’ 
springing, like the fl. from the root . Crocus. 565. 
— The 3 outer lobes of the perianth bent back. Stigs large, 
petaloid, covering the stas. Ls ensiform, partly equitant. 
Iris. 597. 
9 (5). True grasses (Graminese). FIs (i.e. stas and styles) 
between two scales (glumellas). Styles gen. 2. Stem gen. 
round, articulate, with nodes. Sheaths gen. open . 10 
— Sedges (Cyperacese). FIs in the axil of single scales 
(glumellas). Style 1. Stem gen. 3-angular, nodes 0 or in¬ 
distinct. Sheaths closed .. 72 
10. Spikelets s e s s i 1 e or very shortly peduncled, forming a spike 
i. e. sessile on the rachis (immediate prolongation of the 
stem). 11 
■— Spikelets peduncled, forming apanicle, which, however, 
is sometimes contracted like a spike (the spikelets always 
in clusters on separate twigs) ..... 24 
11. A solitary spike terminating the stem. Stig. uncoloured 12 
— Several spikes (2—11) digitate at the top of the stem. 
Stig. red . . . . . . . . 22 
