IOWA ACADEMY OF SCIENCES 1 . 
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Lacinaria Hill. Blazing Star. Button Snakeroot. 
531. L. punctata (Hook.) Kuntze. ( Liatris punctata 
Hook.) Frequent on dry gravelly knolls. 
532. L. pycnostachya (Michx.) Kuntze. (. Liatris 
pycnostachya Michx.) ' Very common on low 
prairies; rarely pure white flowers are seen. 
533. L. scariosa (L.) Hill. ( Liatris scariosa Willd.) 
Common. The heads are usually sessile, but in 
wet years they are frequently on peduncles an 
inch or more in length, a form called var. 
racemuiosa Sheldon. 
Solidago L. Golden-rod. 
534. S. flexicaulis L. (S. latifolia L.) Frequent in 
woods. 
535. S. rigidiuscula (Torr. and Gray.) Porter. (S. speciosa 
var. angustata A. Gray.) Rare on dry prairies, 
growing in clumps. 
536. S. serotina Ait. Frequent, especially near timber; 
our tallest species. 
537. S. missouriensis Nutt. Very common on prairies; 
our earliest species in flower. 
538. S. canadensis L. Very common and variable. 
539. S. nemoralis Ait. Common on dry prairies and 
gravelly knolls. 
540. $.■ rigida L. Very common. 
541. S. riddellii Frank. Rare on low prairies. The 
peculiar, grass-like leaves at once distinguish 
this beautiful species. 
Futhamia Nutt. 
542. E. graminifolia (L.) Nutt. ( Solidago lanceolata L.) 
Frequent in low prairies. 
Bolto-nia L’Her. 
543. B. asteroides (L.) L’Her. Very commoiTjm low 
prairies, often growing in water. 
Aster L. Aster. 
544. A. cordifolius L. Frequent in woods. 
