GLOSSARY AND IND2X. 215 



Parapnyses, jointed filaments mixed with the antheridia of Mosses. 

 Parasitic, living as a parasite, i. e. on another plant or animal, 37. 

 Parenchemylous, composed of parenchyma. 



Parenchyma, soft cellular tissue of plants, like the green pulp of leaves, 132. 

 Parietal (placentae, &c.), attached to the walls (jmrietes) of the ovary. 

 Pariplnnate, pinnate with an even number of leaflets. 

 Parted, separated or cleft into parts almost to the base, 55. 

 Parthenogenesis, producing seed without fertilization. 



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 ot a peduncle; par- 

 tial umbel, an umbellet, 76. 



Partition, a segment of a parted leaf; or an internal wall in an ovary, anther, &c. 

 Patelliform, disk-shaped, like the patella or kneenan. 

 Patent, spreading, open. Patulous, moderately t,, .reading. 

 Pauci-, in composition, few; as paucijiorous, few-flowered, &c. 

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

 Pectinate, 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. 



Pedicel, the stalk of each particular flower of a cluster, 73. 

 Pedicellate, Pedicelled, borne on a pedicel. 

 Pedalis, Latin for a foot high or long. 



Peduncle, a flower-stalk, whether of a single flower or of a flower-cluster, 73. 

 Pedunded, Pedunculate, furnished with a peduncle. 



Peloria, an abnormal return to regularity and symmetry in an irregular flower; com- 

 monest in Snapdragon. 



Peltate, shield-shaped; said of a leaf, whatever its shape, when the petiole is at- 

 tached to the lower side, somewhere within the margin, 53. 

 Pthiform, basin-shaped. 



Pendent, hanging. Pendulous, somewhat hanging or drooping. 

 Penicillate, Penicilliform, tipped with a tuft of tine hairs, like a painter's pencil; as 



the stigmas of some Grasses. 



Pennate, same as pinnate. Penninerved and Penniveined, pinnate^' veined, 51. 

 Penta- (in words of Greek composition), five; as Ptntadelphous, 99; Pentagynous, 

 with rive pistils or styles; Pentamerous, with its parts in fives, or on the plan of 

 five; Pentandrous, having five stamens, 112; Ptntastichous, in five ranks, c. 

 Pepo, a fruit like the Melon and Cucumber, 119. 

 Perennial, lasting from year to year, 38. 

 Perfect (flower), having both stamens and pistils, 31. 

 Pei-fohaie, passing through the leaf, in appearance, GO. 

 Perforate, pierced with holes, or with transparent dots resembling holes, as an 



Orange-leaf. 



Peri-, Greek for around ; from which are such terms as 

 Perianth, the leaves of the flower collectively, 79. 

 Pericarp, the ripened ovary; the walls of the fruit, 117. 

 Pericarpic, belonging to the pericarp. 

 Perigonium, Perigone, same as perianth. 



Perigynium, bodies around the pistil ; applied to the closed cup or bottle-shaped 

 body (of bracts) which encloses the ovary of Sedges, and to the bristles, little 

 scales, &c., of the flowers of some other Cyperaceae. 

 Perigynous, the petals and stamens borne on the calyx, 95, 99. 

 Peripherie, around the outside, or periphery, of any organ. 

 Perispe.rm, a name for the albumen of a seed. 

 Peristome, the fringe of teeth to the spore-case of Mosses, 163. 



Persistent, remaining beyond the period when such parts commonly fall, as th* 

 leaves of evergreens, and the calyx of such flowers as persist during the growth 

 of the fruit. 



