Poinciana elata — Polygonum Raji. 
Poinciana elata II. 110. Polygala Senega II. 365. 
.— regia II. 393. 394. — sibirica II. 208. 
Polanisia Raf, II. 239. -—- Stanleyana II. 117. 
— Dianthera DC. II, 106. — verticillata II. 71. 
— graveolens Raf. II. 200. — virgata Thunb. II. 105. 
— Petersiana Pax 11. 106. — vulgaris L. 434. — Il. 147. 
— suffruticosa Pax 1. 106. 150. 225. 399. 
Polemoniaceae 278. 435. — II.| — — var. grandiflora Bab. II. 
82. 83. 287. 149. 
Polemonium coeruleum II. 82.| Polygalaceae 464. — II. 88. 
— — var. humile II. 82. 288. 
Polygalon II. 177. 
Polygonaceae 241. — 1. 37. 
82. 83. 88. 205. 247. 288. 
Polygonatum Il. 64. 
— pulchellum Bunge 270. 
Polianthes 457. 
— tuberosa II. 120. 
Polyblastia 166. 
Polycardia centralis Bak* IL.| — amabile II. 87. 
103. — biflorum H, 72. 
Polycarpaea spicata II. 131. — giganteum Dietr. IL. 19. 
Polycarpum tetraphyllum II. 33. 
174. — — var. falcatum II. 395. 
Polycline Stuhlmannii Hoffm.*| — latifolium 460. 
II. 125. — multiflorum II. 30.207. 209. 
Polycnemum majus A. Br. II, — P. 113. 356. 
161. — officinale II. 207. 209. 
Polycoccum incongrua. Arn. 167.| — verticillatum Al. IL. 157. 
Polycyenis Lehmanni Rolfe* II. | Polygonella ericoides II. 65. 
46. Polygonum 263. 382. — II. 55. 
Polyceystis pallida 44. 63. 76. 247. 398. 
Polyedes rotundus Cohn II. — acanthophyllum Lind.* IL. 
Polygala II. 177. 38. 
— amara Jcqg. 309. — acre H. B. K. II. 37. 
— amaurocarpum Timb.- — acre leptostachyum II. 55. 
Lagr.* II. 177. — acuminatum II. 37. 
— calcarea F. Schultz 399.| — — var. glabrescens II. 37. 
434. — —  ,„. microstemon 11.37. 
— GCalifornica Nutt. II. 61. — alpinum II. 176. — P. 79. 
— Carueliana II. 189. — amphibium 288. 
— comosa Schk. II. 225. — aviculare L. 393. 394. — 
— cornuta Kell. II. 60. 61. II. 37. 71. 84. 155. 
— cucullata Benth. II. 61. — — var. boreale Zgl.II. 84. 
— depressa Wend. 309. 434.| — Beltfreundianum Lind.* II. 
— II. 156. 173. 399. 138. 
— Ehlersii Gürke* II. 128. — Beyrichii II. 395. 
— erioptera II. 131. — Bistorta L. I. 82. 85. 400, 
— Guerichiana Zngl.* II. 121.| — boreale (Lge.) II. 55. 84. 
— lutea II. 68. — brasiliense ©. Koch 1. 37. 
— major II. 208. 211. — camporum Meissn. Il. 37. 
— modesta Gürke* II. 128. 55. 
— paucifolia II. 71. — — var. australe Meissn. Il. 
— persicariifolia II. 105. 37. 55. 
— puberula Gray Il. 47. — Careyi Il. 55. 72. 
— — var. ovalis Robs. et@r.*| — chinense 338. — II. 395. 
II. 47. — cilinode II. 72. 
— sanguinea II. 71. — Convolvulus I, 61. 
567 
Polygonum cordobense Lind.* 
II. 38. 
cristatum EZ. et G. Il. 55. 
56. 
cuspidatum Sieb. et Zucc. 
II. 56. 
cymosum II. 497. 
Davisiae Il. 55. 76. 
densiflorum II. 55. 65. 
dumetorum II. 55. 
emarginatum Il. 427. 
emersum (Michx.) Britt. 
II. 55. 
Engelmanni Sheld. II. 56. 
equisetiforme II. 56. 
esculentum II. 427. 
exsertum Small* II. 55. 76. 
Fagopyrum 264. 384. 386. 
glabrum II. 38. 
Hartwrightii II. 58. 72. 
horridum II. 38. 
Hydropiper 263. — II. 72, 
lapathifolium II. 43. 72. 
longistylum Small* II. 55. 
76. 
maculatum II. 168. 
Meissnerianum II. 37. 
- — var. Beyrichianum II. 
37. 
Mexicanum II. 55. 
microspermum sSheld. II. 
56. 66. 
minus II. 55. 
mite Schrank II. 157. 
nodosum 263. 
Newberryi Small* II. 55. 
76. 
Opelousanum Redd. II. 55. 
orientale II. 395. 
paraguayense II. 37. 
pennsylvanicum II. 65. 
Persicaria L. 263. 
persicarioides II. 43. 
persicarioides Gris. II. 37. 
persicarioides HM. B. K. Il, 
55. 
— polycnemoides II. 56. 
— punctatum II. 55. 65. 
— — var. leptostachyum II. 
65. 
— punctatum eciliatum Il. 55. 
— punctatum robustum 
Small* II. 55. 
— Raji IL 72. 150. 
