98 POISONOUS PLANTS OF ALL COUNTRIES 



Oblong (leaves). A long oval. 

 Obovate (leaves). Egg-shaped, with 



broadest part at apex. 

 Obtuse (leaves). Blunt at apex. 

 Oval (leaves). Longer than broad, 



with ends equally rounded off. 

 Ovary. A receptacle for the ovules. 

 Ovate (leaves). Egg-shaped, with 



broadest part below. 

 Ovoid. More or less oval. 



Pale. A chaS-like bract. 



Palmate (leaves). With finger-like 

 lobes. 



Panicle. A compound raceme. 



Papilionaceous. Butterfly-like. 



Pappus. A persistent, growing 

 calyx. 



Pedate (leaves). Divided into three 

 branches; outer into leaflets at 

 inner margin. 



Pedicel. Flower-stalk. 



Peduncle. Common stalk of in- 

 florescence. 



Peltate (leaves). With stalk at- 

 tached to under side. 



Pendent. Hanging. 



Perennial. Living for several years. 



Perianth. Floral envelope. 



Pericarp. Rind of fruit. 



Persistent. Not falling. 



Petal. A division of corolla of 

 flower. 



Petiole. Leaf-stalk. 



Pileus. A cap-shaped Fructifica- 

 tion. 



Pinnate (leaves). Composed of a 

 row of leaflets either side of stalk, j 



Pinnatifid. Pinnately lobed. 



Pistil. Reproductive part of flower. 



Pollen. A fertilizing body found in 

 the Anther. 



Procumbent. Lying mostly on 

 ground. 



Pubescent. Downy. 



Raceme. A stalked flower-spike. 

 Rachis. Axis of inflorescence. 

 Radical. Springing from root. 

 Raphe. Connection between seed 



and placenta. 

 Reniform. Kidney-shaped. 

 Reticulate. Net-veined. 

 Revolute (leaves). Margins rolled 



back. 



Rhizome. A form of underground 



stem. 

 Root-stock, A form of underground 



stem. 



Sagittate (leaves). With acute lobes 



at base. 

 Scale. A peltate hair. 

 Scandent. Climbing. 

 Segment. A division. 

 Sepal. A division of the calyx of 



flower. 

 Serrate (leaves). Saw-like teeth at 



margin. 

 Sessile. Placed directly on stem. 

 Sinuate (leaves). With broad, 



shallow, rounded indentations at 



margin. 

 Spadix. A spike surrounded by a 



spathe. 

 Spathe. A form of bract. 

 Spike. A simple peduncle. 

 Spinous. Furnished with thorns or 



prickles. 

 Spore. A non-sexual reproductive 



cell. 

 Stamen. Accessory reproductive 



part of flower. 

 Standard. Uppermost petal of 



papilionaceous flower. 

 Stem. Flower, fruit, and leaf- 

 bearing part. 

 Stigma. Part of pistil of flower. 

 Stipule. A leaf -like appendage. 

 Striate. Lined. 

 Style. Part of pistil of flower. 

 Subulate (leaves). Awl-shaped; as 



thick as broad. 

 Superior. Above. 

 Suture. A seam on the ovary. 



Temate. Three leaflets from apex 

 of petiole. 



Testa. Covering of ovule. 



Thalloph3rte. A plant constructed 

 of cells only. 



Thjrrse. A much-branched, pyra- 

 midal panicle. 



Tuber. A form of underground 

 stem. 



Umbel, stem terminating in nu- 

 merous, stalked flowers. 

 Undulate. Waved. 



Whorled, Arranged in a circle. 



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