216 GLOSSARY AND INDEX 



Pertonate, masked; a bilabiate corolla with a palate in the throat, 9i. 



Pertuse, perforated with a hole or slit. 



Perulate, having scales (Ferulae), such as bud-scales. 



Peg, pedis, Latin for the foot or support, whenct Longipes, long-stalked, &c 



Petal, a leaf of the corolla, 14, 79. 



Petalody, metamorphosis of stamens, &c., into petals. 



Petaloid, Petaline, petal-like ; resembling or colored like petals. 



Petiole, a footstalk of a leaf; a leaf stalk, 49. 



Petioled, Petiolate, furnished with a petiole. 



Petiolulate, said of a leaflet when raised on its own partial leafstalk 



Petrceus, Latin for growing on rocks. 



Phalanx, phalanges, bundles of stamens. 



Phcenogamous, or Phanerogamous, plants bearing flowers and producing seeds 



same as Flowering Plants. Phcenogams, Phanerogams, 10. 

 Phlceum, Greek name for bark, whence Endophlceum, inner bark, &c. 

 Phceniceotts, deep red verging to scarlet. 

 Phycology, the botany of Algae. 



Phyllocladia, branches assuming the form and function of leaves. 

 Phyllodium (plural, phyllodia), a leaf where the seeming blade is a dilated petiole, 



as in New Holland Acacias, 61. 



Phyllome, foliar parts, those answering to leaves in their nature. 

 Phyllon (plural, j)hylla), Greek for leaf and leaves; used in many compound terms 



and names. 



Phyllotaxis, or Phyllolaxy, the arrangement of leaves on the stem, 87. 

 Physiological Botany, 9. 



Photography, relates to characterizing and describing plants. 

 Phyton, or Phytomer, a name used to designate the pieces which ty their repetition 



make up a plant, theoretically, viz. a joint of stem with its leaf or pair of leaves. 

 Pileus of a mushroom, 172. 



Piliferous, bearing a slender bristle or hair (pilum), or beset with hairs. 

 Pilose, hairy; clothed with soft slender hairs. 



Pinna, a primary division with its leaflets of a bipinnate or tripinnate leaf. 

 Pinnule, a secondary division of a bipinnate or tripinnate leaf, 66. 

 Pinnate (leaf), when leaflets are arranged along the sides of a common petiole, 57. 

 Pinnately lobed, cleft, parted, divided, veined, 56. 



Pinnatijid, Pinnatisect, same as pinnately cleft and pinnately parted, 56. 

 Pisiform, pea-shaped. 



Pistil, the seed-bearing organ of the flower, 14, 80, 106. 

 Pistillate, having a pistil, 85. 



Pistillidium, the body which in Mosses answers to the pistil, 159, 164. 

 Pitchers, 64. 



Pith, the cellular centre of an exogenous stem, 138. 



Placenta, the surface or part of the o retry to which the ovules are attached, 107. 

 Placentiform, nearly same as quoit-shaped. 

 Plaited (in the bud), or Plicate, folded, 72, 98. 



Platy-, Greek for broad, in compounds, such as Platyphyllous, broad-leaved, &c. 

 Pleio-, Greek for full or abounding, used in compounds, such as Pleiopetalous, of 



many petals, &c. 

 Plumbeus, lead-colored. 

 Plumose, feathery; when any slender body (such as a bristle of a pappus or a style* 



is beset with hairs along its sides, like the plume of a feather. 

 Plumule, the bud or first shoot of a germinating plantlet above the cotyledons, 13 

 Pluri-, in composition, many or several; as Plurifoliolate, with several leaflets. 

 Pod, specially a legume, 122; also may be applied to any sort of capsule. 

 Podium, a footstalk or stipe, used only in Greek compounds, as (suffixed) Leptn- 



podus, slender-stalked, or (prefixed) Podocephalus, with a stalked head, and 



in Podosperm, a seed stalk or f iinieiilus 

 Pogon, Greek for beard, comes into various compounds. 



