7 
liv 
INTRODUCTION. 
Scrophulariaceje. Nos. JO-15. Fruit a 2-celled membranous 
short pod. 
Dianthera. Fruit a short woody pod : seeds wingless. 
Catalpa. Fruit a very long pod : seeds many, winged. 
Lentibulacejg. Pod 1-celled : placenta central. Anthers 1-celled. 
295 
293 
291 
285 
* * * Flowers glumaceous. 
Cyperaceje. Nos. 1, 2, 9,10, 13,14. 515 
Order Digynia. Styles or sessile stigmas 2. 
* Flowers glumaceous. 
Graminejs. Nos. 1,10, 22, 28, 48, 57. 567 
* * Flowers not glumaceous. 
Blitum. Petals none. Calyx berry-like or fleshy. 379 
Anychia. Petals none. Calyx of 5 sepals. Seed 1. 55 
Elatine. Petals and sepals 2 or 3. Seeds several. 55 
Order Tetragynia. Styles or sessile stigmas 4. 
Ruppia. Calyx and corolla none. Ovaries 4. 
454 
CLASS III. TRIANDRIA. 
Order Monogynia. Style or sessile stigma 1. 
* Perianth adherent to the ovary (ovary inferior). 
-♦-Corolla 5-lobed. Leaves veiny. 
Fedia. Border of the calyx tooth-like and naked, or obsolete. 
Valeriana. Border of the calyx unrolling and plumose in fruit. 
-♦—•-Perianth 6-parted. Leaves equitant, nerved. 
Lachnanthes. Stamens exserted. Perianth regular. Stigma 1. 
Iris. Stamens under the 3 petal-like stigmas. 
* * PeriaDth free from the (superior) several-seeded pod. 
-♦-Perianth tubular, petaloid. 
Heteranthera. Stamens dissimilar. Leaves kidney-shaped. 
Schollera. Stamens similar. Leaves linear. 
182 
182 
481 
482 
510 
510 
Perianth of more or less separate parts. 
Commelyna. Calyx and corolla separate, irregular. Stigmas single. 511 
Xyris. Calyx and corolla separate, irregular. Stigmas 3. 5Kj 
Juncus. Perianth 6-parted, entirely glumaceous, regular. 505 
♦ * * Proper perianth none, or bristle-like. Fruit 1-seeded, seed-like 
Bracts glumaceous. 
Cyperaceje generally (and one or two Grasses). 
515 
Order Digynia. Styles or sessile stigmas 2. 
* Flowers inwrapped in glumaceous bracts. 
G ram i neje generally. 
* * Flowers not glumaceous. 
Anychia. Calyx 5-parted. Utricle 1-seeded. 
Order Tri-Tetragynia. Styles or sessile stigmas 3-4. 
StelLaria. Pod 1-celled, several-seeded at the base. 
Mollugo. Pod 3-celled, 3-valved, many-seeded, free. 
Lechea. Pod partly 3-celled, 6-seeded, free from the calyx. 
Proserpinaca. Nut 3-celled, 3-seeded, adherent to the calyx. 
567 
65 
61 
66 
48 
139 
