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2. §. srENOPETALUM Pursh. Leaves acute, 
lanceolate; flowers yellow.—Camp ‘Taylor. 
Summer. 
3. Tillea L. 
Stamens as many as petals.—©. Minute 
vernal aquatics. 
1. ‘T. minima Miers. Flowers clustered, 
white.—San Miguel. 
2. T. anausrirotia Nutt. Flowers solitary, 
white.—Mission Dolores. 
Section 2. CENTROSPERMm&. Central placen- 
tation from the base of the ovary. 
Orpen]. FICOIDALES. Anomalous, 
transitional types. 
Family 1. FICOIDEZ. 
Calyx superior. Petals o. Stamens oo- 
seriate, inserted with the petals. Ovary 4-20- 
celled, oo-ovulate. Fruit a capsule, oo-seeded. 
Stipules 0. 
1, Mesembrianthemum L. Fra-Marycorp. 
Characters of the family. 
1. M. mqumaTERALE Haworth. Flowers 
red.—2{. Rocks near the seashore. Summer. 
Fruit edible. 
Orprr 2. CARYOPHYLLALES. Flowers 
regular. Calyx inferior. Sepals as many as 
