APPENDIX 467 



(Nwmhers refer to paragraphs.) 



Plur-annual. A plant which is an annual only because it is killed by the 



closing of the growing season. 489ffl. 

 Pod. A dry, dehiscent pericarp. SOSos. 

 Pollen. The contents of the anther, and which fecundates the ovules when 



applied to the pistil: it is usually in the form of grains. 144, 147. 

 Pollination. The act or fact of conveying pollen from anther to stigma. 



148, 269d. 

 Pollinium. A mass of coherent pollen, occupying nearly or quite the entire 



locule. 279a. 

 Poly. Many or numerous: used only in combinations. 

 Polygamous. Hermaphrodite and diclinous flowers variously mixed upon the 



plant. 193. 

 Polypetalous . Parts of the corolla distinct. 209. 

 Polysepalous. Parts of the calyx distinct. 210. 



Pome. Fruit of the kind represented by the apple, pear, quinee and haw- 

 thorn. 348. 

 Progressive inflorescence. An indeterminate inflorescence in which the whorls 



are widely separated. 220. 

 Prostrate. Lying upon the ground. 406. 



Proterandrous . Stamens maturing before the pistils in the same flower. 190a. 

 Proterogynous. Pistils maturing before the stamens in the same flower. 190a. 

 Pseud-annual. Plants which are practically annuals, but which carry them- 

 selves over to the next season by means of bulbs, oorms, and the like, 



rather than by seeds. 490a. 

 Pteridophyte. Term used to designate the cryptogamous plants which have 



distinct vascular bundles or woody flber : includes ferns, equisetums, 



isoetes, club-mosses, etc. 437a. 

 Pubescent. Covered with fine short hairs. 



Putamen. The pit or stone of a drupe (300) ; also the shell of a nut. 

 Pyxis. A pod which opens on or near the top by a lid or cover. 308. 

 Quadrifld. With four clefts or parts. 104c. 

 Quadrifoliolate. With four leaflets. 104a. 

 Quadrilocular. 4-loouled: 4-celled. 157a. 

 Quadriserial. A term proposed in th's book to designate flowers having all of 



the four series, — gynoecium, androecium, corolla, calyx. 152a. 

 Quinquefoliolate. With five leaflets. 104a. 

 Quinqueloeular. 5-loculed: 5-celled. 157a. 

 Baeeme. A simple open inflorescence, in which the flowers are on pedicels 



and the lowest ones opening first. 216. 

 Bachis. The axis of a compound leaf or of » dense elongated flower-cluster 



(as of a spike). (94): mid-rib of a compound leaf (88) or frond (426a). 

 Badiele. Old name for the caulicle. 409o. 



