12 



PB ACTIO AL GUIDE TO QABDEN PLANTS 



Fia. 75. — OVATE. 



Orbicular, nearly round and fiat, as in fig. 



79, which shows an orbicular and peltate 



leaf of TropcBolum majus. 

 Oval, an ellipse ; not broader at one end 



than at the other, and 



about twice as long as 



broad. 

 Ovary, the immature seed- 

 vessel. 

 Ovate, egg-shaped ; a short 



flat figure rather broader 



below the middle of its 



length (fig. 75). 

 Ovoid, the same as ovate, 



but applied usually to 



solid, and not flat, bodies, 



e.g. Apples, Pears, Plums. 

 Ovule, the name applied to the young seed 



before it has been fertilised by the contents 



of the pollen-tube. 



Palate, the prominent part of the base of 

 the lower lip which closes the mouth of a 

 personate corolla, as shown in the flower 

 of Snapdragon at fig. 84, p. 



Palea, the leaf-like parts of the flower of 

 Grasses, inclosing the stamens, pistils, and 

 hypogynous scales. 



Paleaceous, furnished with chaffy scales, as 

 the receptacle of some Composites. 



Palmate, spreading like the fingers of a 

 hand from the same point. 



Palmate-lobed, palmate with lobes, as in the 

 leaves of the Maple. 



Palmatifid, palmate, 

 with the lobes extend- 

 ing to the middle of 

 the leaf, as in the 

 Castor Oil plant (fig. 

 76). 



Palmatisect, palmate, 

 with the divisions ex- 

 tending to the bottom 

 of the leaf. 



Paludosus, Palustris, 

 growing in marshy places. 



Panicle, a raceme with branching pedicels 

 (fig- 77). 



Fie. 76.— PALMATIFID. 



FIG. 77. — PANICLE. 



FIG. 78.— rAPPns. 



Pappus, the crest of the fruit in Composites, 

 formed of the altered limb of the calyx. 

 In fig. 78, a shows a sessile or stalkless 

 pappus, and 6 a stalked or stipitate pappus ; 

 / is the fruit. 



Parasitic, living on another plant, like the 

 Mistletoe (p. 781). 



Parenchyma, the soft cellular tissue of 

 plants, the green pulpy material between 

 the ribs and veins of leaves. 



Parietal (placentation), on the sides or walls 

 of the carpels, as shown in fig. 86, p. 



Paripinnate, pinnate with an equal number 

 of leaflets, as shown in fig. 85. 



Patent, spreading widely, a term often used 

 by botanists in connection with the petals 

 of a corolla. 



Pectinate, scalloped, crenately incised, like 

 the teeth of a comb. 



Pedate, palmate with three lobes and the 

 lateral lobes having similar large lobes on 

 their outer edge, as the leaves of Helle- 

 borus. 



Pedate-lobed, pedate, with rounded divisions 

 or lobes. 



Pedatifid, pedate, with the divisions reach- 

 ing to the middle of the leaf. 



Pedatipartite, pedate, with the divisions 

 nearly reaching to the bottom of the leaf. 



Pedatisect, pedate, with the divisions ex- 

 tending nearly to the midrib. 



Pedicel, the branch of a peduncle, otherwise 

 the stalklet of an individual blossom, as 

 shown in fig. 91, ped ; here the peduncle 

 or main fiower stalk is shown at p, and the 

 bracts are shown at 6. 



Peduncle, flower stalk. 



Papilionaceous, like the flower of a Pea 

 (fig. 5). 



Peloria, the term applied 

 to the regular form of a 

 usually irregular flower 

 like the Common Toad- 

 flax (fig. 80). 



Peltate, when the point of 

 attachment is on the face, 

 not at the edge, of a leaf or 

 other organ (fig. 79). 



Penninerved, Penniveined, 

 when the veins of a leaf 

 radiate obliquely and re- 

 gularly from the midrib (fig. 81). 



Pentagonal, with five angles having convex 

 spaces between them. 



FIG. 81.- PEXXI- 

 VEINED. 



