GLOSSARY. 15 
Orthotropous, said of an ovary when its point of attachment is at its base and the apex is in 
direct line with it. (Plate 28, fig. 6.) 
—osé, as a suffix means like whatever root-word precedes it; as, racemose—like a raceme. 
Osseous, bony. 
Oval, broadly elliptical. (Plate 151, fig. 2.) 
Ovary, that portion of the pistil that contains the ovules. (Plate 28, fig. 5.) 
Ovoid, a solid oval. (Plate 28, fig. 6.) 
Ovule, that organ that is destined to become a seed (plainly seen in fig. 5, plate 125). 
Palea, pl. Palee, the chaff of composite receptacles. 
Paleaceous, chaffy. : 
Palmate, when the organs in question radiate more or less from the point where some other 
organ is attached (the veins of the leaf, plate 18; the leaflets, plate 40 (digitate); and 
the lobes of the leaf, fig. 2, plate 8). 
Palmately, in a palmate manner, as above. 
Panicle, an open cluster (the arrangement of the flowers, fig. 1, plate 119). 
Papery, see Papyraceous. 
Papilhionaccous, spreading like a butterfly. (Plate 50, fig. 1.) 
Papilla, p\. Papille, small mammz (as seen on the corolla, fig. 3, p!ate 79). 
Pappus, thistle-down. (Plate 81, fig. 3.) In Composite this, with chaff, téeth, or scales, 
represents the calyx in this order. 
Papyraceous, of the texture of writing paper. 
Parenchyma, the pulp of plants. 
Parietal, attached to the walls (as the ovules in fig. 5, plate 7). 
Parted, cleft almost to the base. (Plate 4, fig. 4.) 
Pauci-, means few when prefixed to root words. (Pauciflorous, few-flowered.) 
Pear-shaped, solid obovate. 
Pedate, palmately cleft, with the lobes again cleft. (Plate 1, fig. 2.) _ 
Pedicel, the individual stalk of each flower in a cluster. (Plate 104, fig. 2.) 
Peduncle, the main stalk of a flower cluster (fig. 2, plate 104), or the flower stalk when the 
plant is one-flowered (as seen above the leaves in plate 175}; or when the flowers are 
single (as in plate 2). The same distinctions pertain to the stalk of heads and clusters 
(as in plates 62 and 70). 
Peltate, shield-shaped (the style of fig. 3, plate 19); said of a leaf, no matter what its shape, 
when the petiole is attached anywhere within its margin (as in plat= 18). 
Pendent, hanging (the fruit of fig. 3, plate 15). : 
Pendulous, somewhat hanging (the flowers of plate 49). 
Penicillate, like a painter’s pencil. (Plate 97, fig. 6.) 
Penta-, five, in Greek derivatives; as 
Pentagynous, having five pistils or styles. 
Pentandrous, five-stamened. 
Perennial, growing on year after year. 
Perfect, a flower having the essential organs. 
Perfoliate, passing through a leaf, or appearing so (the leaves, plate 79). er 
arance. (Plate 30, 
Perforate, pierced with holes, or having transparent dots giving that appea 
fig. 7.) oe Be ner ees ae . 
Perianth, the leaves of the flower, especially when they cannot be distinguished ns to calyx. 
or corolla. : : | oer ae ae 
Pericarp, a ripened ovary ; or the fruit walls. 
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