1849.] Bigelow on the Medical Botany of Ohio. 27 



Very much resembles A. Cornuti Decaisne, which has hither- 

 to passed for A. Syriaca, L. Doubtless often mistaken for it, 

 and possessing similar virtues. 



Sp. 136. ACERATES LONGIFOLIA. Ell. 



Com. name — Long-leaved Green Milk Weed. Perennial 

 plants 1° — 2* high ; flowers greenish, tinged with yellow and 

 purple. — June, July. 



Resembles Asclepias. We have many species belonging to 

 this rather active order, which I think will amply repay 

 scientific investigation. 



Order XLI— OLEACE^E. {Olive Family.) 

 Sp. 137. Fraxinus Americana. Linn. 

 Com. name — White Ash. Large forest tree. Leaflets 7 — 9 

 stalked. — April, May. 



Sp. 138. Fraxinus quadrangulata. Michx. 



Com. name — Blue Ash. A large tree; leaflets 5 — 9. Tim- 

 ber valuable. 



According to Rafinesque and Griffith, the barks of these and 

 others of the genus, are bitter and astringent, and formerly, 

 were much employed in the treatment of intermittent. They 

 are said also, to remove splenic enlargements. (Riddell.) 



Order XLIL— POLYGON A CE.E. {Knot Weed Family.) 

 Sp. 139. Polygonum virginianum. Linn. 



Com. names — • Wand-spiked Persicaria, Virginian Bistort. 

 Stem angled, upright 2° — 4 W . Spike 10' — 20' long. — August. 

 Astringent, diuretic, sub-tonic, &c. 



Besides this, and those well known in our Dispensatories, we 

 have eight or ten species, some of which are doubtless supe- 

 rior equivalents. 



Sp. 140. Rumex veticillatus. Linn. 



Com. name — -Swamp Dock. Stem 2° — 4° high. Grain £ 

 to h the width of the valve. — June, July. 



We have also, nearly all that are spoken of in our Dispen- 

 satories. They are acquiring so much reputation, as to be- 

 come introduced into Quack nostrums. Patient investigation 

 will determine their good qualities. 



Order XLIIL— SANTALACE^. {Sandal Wood Family.) 



Sp. 141. COMANDRA UMBELLATA. Nutt. 



Com. name — Bastard Toad-flax. Low (8' — 10' high.) Per- 

 ennial herb, and greenish white flowers. — May, June. 



Used for fevers by the Algic tribes. (Rafinesque 2d, 212.) 



