YELLOW-EYED GRASS FAMILY. Xyridaceae. 



posed of light green leafy scales. The fruit is an oblong 

 many-seeded capsule. The name is from vpi$ an 

 unknown Greek plant with two-edged leaves. The 

 plant grows 6-16 inches high, in sandy bogs or morasses, 

 from Me. to Minn., and south to Ga. and Tex. 



A dwarf and slender species found in 

 Northern , . . .,, . , , 



Yellow-eyed mountain regions, with a straight 01 



Grass slightly twisted stem, not bulbous at the 



Xyris montana base. Leaves narrow and linear about 2 

 July-August inches long, not twisted. The small ovoid 

 flower-heads about \ inch thick. 3-12 inches (rarely 12) 

 high. Generally in peat bogs. Mt. Desert, Me. , and the 

 White Mts., south to Pocono Mts., Pa., west to Mich. 

 Xyris caro- ^ * a ^ kut var i a ble species ; the stem not 



liniana bulbous at the base. Leaves grasslike, 3-8 



June-August inches long and about \ inch wide. The 

 ovoid head about J inch in diameter. 10-16 inches high, 

 rarely taller. In swamps and wet sandy lake shores, Me. 

 south near the coast, and west to Ind. 

 Xy*ris difformis A stout southern species, with thickish* 

 June-August broad lance-linear leaves. Flower-stem 

 slightly twisted, and strongly flattened. Heads spherical, 

 J inch in diameter. Sandy shores. Md. south to La. 

 Xyris elata A tall, southern species with grasslike 



June-August leaves 8-16 inches long. Flower-stem slen- 

 der and scarcely flattened, two-edged. Heads about f-1 

 inch long, and nearly cylindrical, Sandy shores, Va. to 

 Fla. and Miss. See Appendix. 



SPIDER WORT FAMILY. Commelinacece. 



Herbs with jointed and often leafy branching stems, 

 the leaves sheathed at the base, and generally perfect 

 flowers, i. e., flowers with stamens and pistil. Cross- 

 fertilization assisted by insects. 



The grass green leaves are lance-shaped, 

 Day Flower an( j b rown _ snea thed at their junction with 

 Commehna hir- . , . 



tel l a the plant-stem; the sheath is hairy-edged. 



Light violet- The flowers are three-parted and irregular, 

 blue that is, unequal in size, form, and struc- 



tural parts ; two of the light violet-blue 

 petals are larger than the third. The leaf 



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