96 J. M. NICKELL’S BOTANICAL READY REFERENCE, 
OLEA LONGIFOLIA. Italian Olive. 
Fruit; Pickeled. esc. con. Olive Oil. 
—1604——_ 
OMPHALEA DIANDRA, West India Cobnut. 
Nuts. Yield Oil Ouabe. 
—1605— 
ONONIS NATRIX. Goat’s Root. 
Analogous to Ononis Spinosa. 
1606——_ 
ONONIS SPINOSA. Rest Harrow. Cammock. Petty Whin. 
Stay Plough. 
Root. diu. det. ape. 
ONOPORDON ACANTHIUM. Cotton Thistle. Musk 
Thistle. Scotch Thistle. Crab Thistle. 
Juice. Externally in Cancer. 
1608—— 
ONOSMODIUM VIRGINIANOUM., False Gromwell,. Corn 
Gromwell. _ Wild Job’s Tears. Necklace Weed. Gravel Weed. 
Gromwell. Job’s Tears, 
Root and Seed. diu. ton. lit. 
1609—_ 
OPHIOGLOSSUM VULGATUM. Adder’s Tongue Fern. 
Snake’s Tongue. 
Plant. vul. In Ointments. 
16 
OPHIORHIZA MITREOLA. Pink Snake Root. 
ot. ant. Reputed a-ven. 
OPHRYS APIFERA. Bee Orehis. Bee Flower. 
Flower, orn. 
oe OTR 
OPUNTIA COCHINILLIFERA. Cochineal Fig. Com- 
mon Prickly Pear. 
Food of the Cochineal Insect. 
1613—— 
OPUNTIA VULGARIS. Common Prickly Pear Cac- 
tus. Prickly Pear Cactus. Prickly Pear. 
Leaves. ref. Juice. Colors Red. 
1614—__.. 
ORCHIS BRACTEATA. Vegetable Satyr. Orchis. Satyr. 
oot. muc. emo, 2 
—16145—— 
ORCHIS LATIFOLIA, Marsh Orchis, Salep Root. 
Root. Yields Salep. 
1616—_ 
ORCHIS MASCULA. Salep Root. Male Orchis. Male Fool’s 
Stones. Fool’s Stones. Standerwort, 
Root, Yields Salep. 
ORIGANUM DICTAMNUS. Dittany of Crete, Spanish 
Marjoram, Hop Marjoram. 
Plant. aro. ton. ale. 
18—— 
ORIGANUM MARJORANA. Sweet Marjoram. Knotted 
Marjoram. Marjoram. 
Plant. aro. ton. emm. cep. con. 
—1619—— 
ORIGANUM SMYRNACEUM, Spanish Marjoram. 
Herb. aro. bit. sti. emm. 
1620 
ORIGANUM VULGARE. Wild Marjoram. Origanum. 
Winter Marjoram. Winter Sweet. Monntain Mint. 
Merb. aro. pun. ton. sti. emm. (Variety O. Marjorana.) 
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