INDEX. 



315 



f 



Pleurisy Root, 199. 



Plicate, folded like a fan, ia3. 



Plunious, like u i)lunu' ; leatlie 



Plumule (a little plume), 111. 



Poa, 271. 



Poet'.s Narci!^^^U!^, 2G2. 



Poinciana, l"-i5. 



Pollen, abuudaiice of, 32. 



Pollenization, curious facts in, 41, 60, 74, 



77, 80, 82, 85, 91, 118, 128, la"), 145, 157, 



163, 173, 180, 197, 201, 207, 235, 



236, 237, -210, "^JtB. 

 Pollinia, masses of pollen. 197. 

 Poly (in composition), many ; as 

 PolVaiidrons, with many stamens 

 Polyanthus 16S, 261, 263. [47. 



Polyi?ouacea3, 203. 

 Polygonum, 200. 

 Polypetalous, with tlie petals free aud 



distinct, 142. 

 Polypod Fern, 20. 

 Polytrichum, 15. 

 Pome, a fruit like an apple, 108. 

 Poor-man's- weather-glass, 168. 

 Poppy, 68. 

 Poppy Bee, 70. 

 Poppvworts, 67, 70. 

 Portulaca, 43, 91. 

 Portulacacei^, 43. 

 Posterior, next lo the axis. 

 Potato, Sweet, 187. 

 Poteutilla, 112. 



Precocious, flowering befon; leafing. 

 Premorse, ending abruptly, 246. 

 Prickles, distinguished from thorns, 114. 

 Pride-of-Ohio, 161. 

 Primrose, 125, 168. 

 Primulace;e, Primworls, 161, 168. 

 Prince's Pine, 152. 

 Prismatic, shai)ed like a prism, 3, 4, or 



many-sided. 

 Procumbent (stem), lying prostrate. 

 Produced, unusually extended. 

 Proterandrous, 82. 

 Proliferous, reproducing, as cymes from 



the midst of a cyme, flowers from the 



midst of a flower. 

 Prothallus, 22. 

 Provinces, 33, 43. 

 Prunus, 116. 

 Pteris, 27. 



Pubescent, downy with short, soft hairs. 

 Puberulent, minutely downy. 

 Pulsatilla, 62. [needle. 



Punctate, dotted, as if punctured with a 

 Purple-fringed Orchis, 238. 

 Purslanes, 4:5. 



Pyriform, of the form of a pear; 

 Pyrus, 112, 117. 

 Pyrola, 150. 

 Pyxis, a pericarp with a lid, 43, 169 



Quadr&ngular, fonr-an<;]od. 



Qualiiv, the external traits, affecting the 



senses, 260. 

 Quamash. 2.58. 

 Quercus, 208. 



.es. ,/ ^ 



1,42,106. J J) 

 ou), five. \^/ 



Quince, 117. 

 Quinale, growing in fiv 

 (iuineunciul a3stivution 

 Q,uin(]^ue (.in couipo.sitio 



R. 



Raceme, flowers arranged as in Cur- 

 rant, 41, 201. 



Kacliis, the axis of an inflorescence, 

 etc., 5M, 41. 



Radiant Head, flowers all ligulate, 144. 



Radiate head, the outer row of flowers 

 ligulate, 145. 



Radical, springuig from the root, 47, 54. 



Radicle, the root end of the embryo. 



Radicle accumbent, 103. See Accumbent. 



Radicle incumbent, 109. See Incumbent. 



Rixdish, 10:3. 



Ramial, of a branch (ramus). 



Ranuuculaceaj, .59, 02. 



Ranunculus, 48. 



Ran stead, 174. 



Rape-seed oil, 103. 



Ravs (of the Composites), 142. 



Rays of an Umbel. 132. 



Receptacle, where the florets of a Com- 

 posite stand, 139. 



Receptacle chalTy, 145. 



Receptacle naked. 139. ^s^v 



Reclined, the leaf in bud bent over Vyi 

 forward. j^)# 



Recurved, bent (not rolled) back- wK? 

 ward, 31. ^^ 



Red Maple, 192. 



Regnia, the fruit of the Geranmm, 



85. 

 Regular, like parts similar, 



73. 

 Reuiform, kidney-shaped, 



73, 177. 

 Repand tootlied, 126. 

 Reproductive organs, 



29. 

 Resupinate, reversed; 



ui)sidedown,72. 

 Reticulate, netted, 47. 

 Retuse, the apex broadly 



indented. 

 Revolute, rolled backward. 

 Rheum, 203. 

 Rhizoma, Rhizome, 20. 

 Rhombic, of the shape of 



a rhomb. 

 Rhododendron, 158. 'H.S'.v 



Rhubarb. 203. • ■^'' 



Ribs, ridcres on the fruit of (he Umbel- 

 worts. 1,35. 

 Richardia. 232. 

 Ricinus. 20(5. 



Ringent (Corolla), the throat open. 

 Robin ia. 121. 

 Robin's Plantain, 140. 

 Rock Manic, 1S8. 



