570 
Potentilla paradoxa U. 58. Prenanthes serpentaria II. 71. 
— pedata Nestl. II. 198. 
Pennsylvanica II. 71. 
pindicola Hausskn. II. 198. 
procumbens II. 159. 
recta L. II. 70. 165. — acaulis II. 210. 
rupestris L. H. 156. — amoena II. 210. 
sericea II. 204. auriculata II. 210. 
supina L. II. 58. 80. 165. elatior Jcg. II. 153. 
— var. Nicolletti Wats. farinosa Il. 157. 
II. 80. — integrifolia>Xlatifolia II. 
Tormentilla Sibth., P. 66 165. 
tıidentata II. 71. Nipponica II. 87. 
— umbrosiformis sSiegfr. et) nivalis II. 82. 
Al.* 11. 212. — offieinalis Jeq. II. 214. 
varnensis Vel.* II. 198. -— Olgae II. 85. 
vitodurensis Siegfr. Il. 165. pannonica Kern. II. 156. 
— Wrangeliana Fisch.et Mey.| — sibirica II. 82. 
II. 60. — var. borealis II. 82 
Poterium polygamum 307. sinensis, P. 359. 
— Sanguisorba, P. 64. tosaensis II. 87. 
Pothomorphe umbellata Mig.| — variabilis Goup. II. 181. 
II. 392. 
— sidaefolia II. 392. 
Pothos bifarius Wall. IL. 253. 
— flexuosus Il. 253. 
Pottia 134. 
— acaulis Knighi* 134. 
— Alfredi Knight* 134. 
areolata Knight” 134. 
assimilis Knighti* 134. 
Bickertoni Knıght* 134. 
Douglasii Knighi* 134. FR 
grata Knight* 134. 
Leonardi Knighi* 134. 
— littoralis 127. 
— longifolia Knight* 134. 
macrocarpa Knight” 134, 
obliqua Knight* 134. 
Patouillardi Besch* 135. 
316. 
ne 
— 
88. 205. 290. 
Pringsheimia 21. 
Prionodon haitensis Ben. et 
Card.* 138. 
Priono-Lejeunea dissitifolia 
Spruce* 131. 
effusa Spruce* 131. 
trachyodes Spruce* 131. 
vagans Spruce* 131. 
vulcanica Spruce* 131. 
— 
— — 
— 
Il. 45. 
II. 101. 
Procris II. 277. 
— serrata Knight* 134. ZUR 
— Stevensii Knight* 134. Prosophora Dendrobii Dougl. 
— Wrightii Knight* 154. 315. 
Pottiaceae 120. 
Pouchetia II. 104. 
Prasinocladus Kuckuck, R. G. 
1l. 47. 
— lubricus Kuck.* 11. 47. 
Prasiola Ag. 19. 
Preissites Knowlt., N. 6. 143. 
— Wardii Knowlt.* 143. 351. 
Premna cauliflora Stapf* 11. 95. 
—- speciosa II. 393. 
Prenanthes altissima I. 71. 
Prosopis glandulosa II. 417. 
Protea 476. 
— Nyassae Rendle II. 105. 
11. 339. 
— demersum Sap.* II. 339. 
Primicorallina Whitf., N. @. II. 
— trentonensis W ’hitf., II. 316. 
Primula II. 85. 163. 184, 290. 
Proserpinacea palustris II. 65. 
— juliflora II. 62. — P. 110. 
— pubescens II. 62. — P. 110. 
Protamomum KBidl.,N.G. II. 94. 
— maxillarioides Kidl.* II. 94. 
Proteaceae 475. — 11.290. 341. 
Proteophylium daphnvidesSap.* 
Potentilla paradoxa — Prunus demissa. 
Proteophyllum dissectum Sap.* 
II. 338. 
leucospermoides Sap.* II. 
338. 
oblongatum Sap.* II. 339. 
— oxyacanthaemorphumsSap.* 
I338 
reniforme Font. II. 338. 
— truncatum Sap.* II. 339. 
Proteoides II. 550. 
— daphnogenoides Heer II, 
350. 
— major Daws.* Il. 350. 
— Neillii Daws.* II. 350. 
Proteus vulgaris 495. 500, 
Protococcoideae 8. 9. 12. 14, 
18. 23. 24, 
Protococcus 24. 25. 
— infusionum Kirchn. 24. 
ey 
mie ar Roemeriana (Kitz.) 
Hansg. 24, 
| — marinus Kütz. 11. 
— ovalis Hansg. 11. 
Protoderma Kütz. 19. 
Protophyllum U. 349. 350. 
Protopteris Witteana Schenk II. 
340. 
— patentissimus Besch.* 131. Protorrhipis Choffati Sap. II. 
337. 
Protostigma sigillarioides II. 
348. 
Prototheca Krüger, N. 6. 86. 
— moriformis Krüger* 86. 
— Zopfi Krüger* 86. 
Prionophyllum Gelloum Mez.* Proustia reticulata Phü* II. 40. 
Prunaceae II. 292. 
PrismatocarpusacerosusSchinz* | Prunella 265. 
Prunus 381. 392. — II. 21. 30. 
96. 295. — P. 103. 104. 
340. 
— acuminata Al. Br. Il. 342. 
— Alleghaniensis II. 69. 
Americana Marsh. 290. — 
II. 69. — P. 97. 104. 
angustifolia Marsh. P. 104, 
Avium L. P. 104. 120. 
Besseyi Bailey 11.58. 293. 
— Besseyi x Watsoni Bailey 
II. 58. 293. 
— (Cerasus L. 374. — II. 20. 
21. 84. — P. 120. 343; 
— Chamaecerasus Il. 207.209. 
211. 
— demissa II. 42. 
