GLOSSARY OF TERMS USED IN TEXT. 185 



Oblong. Longer than broad with the sides nearly parallel. 



Obovate. Ovate with the broad end outward; inversely ovate. 



Obtuse. Blunt or rounded. 



Orbicular. Nearly circular in outline. 



Ovary. See p. 39. 



Ovate. Egg-shaped. 



Ovoid. Same as ovate. 



Ovule. A minute or unripe seed. 



Panicle. See p. 41. 



Panicled. Arranged in a panicle. 



Pappus. The bristles, awns, teeth, etc., borne on the tops of the achenes 

 of Composite and aiding in their distribution. 



Parasitic. Growing upon other plants and absorbing nourishment there- 

 from. 



Parted. Deeply cleft 



Peduncle. The stalk of a flower. 



Pellucid. Admitting the passage of light; translucent. 



Perfect. Flowers with both stamens and pistils. 



Perianth. Having the calyx and corolla so similar as not to be readily 

 distinguished. 



Persistent. Remaining on the plant until withered or after growth has 

 ceased. 



Petal. One of the parts of the corolla. 



Petiole. The stalk of a leaf. 



Pinnate. Leaves divided into leaflets along a common axis. 



Pistil. See p. 38. 



Pistillate. Possessing pistils. 



Plumose. Feather-like. 



Pollen. The male fertilizing grains borne by the stamens. 



Polypetalous. With separate petals. 



Pubescent. Bearing hairs. 



Punctate. Marked with translucent dots. 



Raceme. See p. 40. 



Ray. The flat strap-shaped corolla of a Composite flower. 



Receptacle. The end of the flower stalk bearing the floral organs or 



flowers. 



Recurved. Curved backwards. 

 Rootstock. An underground stem with buds. 



Rosette. One or more circles of leaves lying flat on the ground. 

 Rugose. Wrinkled. 



Sac. A pouch or cavity as of anthers or embryo. 



Scale. A minute leaf. 



Scalloped. With rounded teeth. 



Sensitive. Closing or folding when touched. 



Sepal. One of the parts of the calyx. 



Sessile. Without a stalk. 



Siliquc. See p. 42. 



Spike. An elongated cluster of sessile blossoms. 



