224 GLOSSARY. 



Orthdtropous or Orthdtropal (ovule or seed) : p. 122, 135, fig. 270, 274. 

 Osseous : of a bony texture. 

 Oval : broadly elliptical ; p. 88. 



Ovary : that part of the pistil containing the ovules or future seeds ; p. 86, 116. 

 Ovate : shaped like an egg with the broader end downwards, or, in plane sur- 

 faces, such as leaves, like the section of an egg lengthwise ; p. 58, fig. 89. 

 Ovoid : ovate or oval in a solid form. 

 Ovule: the body which is destined to become a seed ; p. 86, 116, 122. 



Palea (plural paleaz) : chaff; the inner husks of Grasses ; the chaff or bracts on 

 the receptacle of many Compositse, as Coreopsis, fig. 220, and Sunflower. 



Paleaceous : furnished with chaff, or chaffy in texture. 



Palmate : when leaflets or the divisions of a leaf all spread from the apex of the 

 petiole, like the hand with the outspread fingers ; p. 167, fig. 129, &c. 



Palmately (veined, lobed, &c.) : in a palmate manner; p. 57, 63, 65. 



Pandunform: fiddle-shaped (which see). 



Panicle : an open cluster ; like a raceme, but more or less compound ; p. 81, 

 fig. 163. 



Panicled, Paniculate : arranged in panicles, or like a panicle. 



Papery : of about the consistence of letter-paper. 



Papilionaceous : butterfly-shaped ; applied to such a corolla as that of the Pea 

 and the Locust-tree; p. 105, fig. 217. 



Papilla (plural papillce) : little nipple-shaped protuberances. 



Papillate, Papillose: covered with papillae. 



Pappus : thistle-down. The down crowning the achcnium of the Thistle, and 

 other Composite, represents the calyx ; so the scales, teeth, chaff, as well 

 as bristles, or whatever takes the place of the calyx in this family, are called 

 the pappus; fig. 292-296, p. 130. 



Parallel-veined, or nerved (leaves) : p. 55, 56. 



Pardphyses: jointed filaments mixed with the antheridia of Mosses. (Manual, 

 p. 607.) 



Parenchyma : soft cellular tissue of plants, like the green pulp of leaves. 



Parietal (placentae, &c.) : attached to the walls (parietes) of the ovary or pen- 

 carp ; p. 119, 120. 



Parted: separated or cleft into parts almost to the base; p. 62. 



Partial involucre, same as an involucel : partial petiole, a division of a main leaf- 

 stalk or the stalk of a leaflet : partial peduncle, a branch of a peduncle : par- 

 tial umbel, an umbellet, p. 81. 

 patent : spreading ; open. Patulous : moderately spreading. 



Pauci-, in composition : few ; as pauci/lorous, few-flowered, &c. 



Pear-shaped: solid obovate, the shape of a pear. 



Pe'ctinate : pinnatifid or pinnately divided into narrow and close divisions, like 

 the teeth of a comb. 



Pedate : like a bird's foot ; palmate or palmately cleft, with the side divisions 

 again cleft, as in Viola pedata, &c. 



Pedately cleft, lobed, &c. : cut in a pedatc way. 



Pe'dicel : the stalk of each particular flower of a cluster; p. 78, fig. 156. 



Pedicellate, Pe'dicelled: furnished with a pedicel. 



