482 
Oscillatoria Tanganyika, G. S. West *, 177 ; 
cf. 93, 191 ; mentioned, 178, 
tenerrima, Kütz., 177. 
tenuis, Ag., 177. 
turfosa, Carm., 173. 
Oscillatoriaceze of Tanganyika, 172. 
Osmunda regalis, Linn., 911. 
Ottelia laneifolia, Rich., 24; mentioned, 
18, 19. 
Oxalis corniculata, Linn., 945. 
Pachycentria tuberculata, Korth., 310. 
H H 
Padina pavonia, J. Ag., 443. 
Preonia, Tourn., mentioned, 50. 
Pepalanthus Wahlbergii, Koern., 26; 
mentioned, 18. 
Palieozoie ancestors of Angiosperms, 48; 
Lycopod, 65. 
Palmace:e, primitive features, 45, 46. 
Palme of Fokien, 369. 
Palmellaceæ, 20, 145, 
Palmophyllum, Kiitz., 145. 
crassum, Rabenh,, mentioned, 145, 
Jlabellatum, Kitz., 145. 
foliaceum, 6, 5. West*, 145; men- 
tioned, 103. 
Pandanacee, 56. 
Pandanales, inflorescence, 39, 42, 
Pandanus, Linn. f., mentioned, 61. 
Pandorina, Bory, 181. 
Morum, Bory, 131, 
Panicum plicatum, Zam., 241 ; mentioned, 
(err. typ. as pileatum), 229, 
Panus sp., 336. 
Рарауегасел, fossil, 209, 
Рагароа pyroliflora, Ridl., 319. 
rubiginosa, Ridl, *, 319, 
Parietaria debilis, Forst., 975, 
Parochetus communis, Hamilt., 246. 
Parviglandulatie ($ ligera), 293, 295, 
Pastinaca sativa, Linn., 209, 215. 
Paulsen's “ Blue Giant " potato, 447. 
Paulueci, Marchese, abnormal Platanthera, 
394. 
Pavonia macrophylla, Æ. Meyer, 243; 
mentioned, 229, 
ruwenzoriensis, 5. Moore *, 255; 
mentioned, 93]. 
Sehimperiana, Zochst., 943; men- 
tioned, 281. 
INDEX, 
Peat containing fossil seeds, 454, 
Pediastreze of Tanganyika, 132. 
Pediastrum, Meyen, 132. 
Boryanum, Menegh., 132. 
var. rugulosum, 6. 5. West * 
29 
Lm 
clathratum, Lemm., 134. 
forma oratum, Schmidle, 134. 
var. Baileyanum, Lemm., 134. 
—— var. microporum, Lemm., 134. 
duplex, Meyen, 133. 
-— forma coh:wrens, Bohlin, 
tioned, 138. 
- — forma rectangulare, Bohlin, men- 
tioned, 133. 
var. clathratum, А. Br., 133. 
——- var. reticulatum, Lagerh., 133. 
enoplon, W. & G. S. West, 134. 
integrum, Nag., 132. 
Napoleonis, Ralfs, 133. 
men- 
pertusum, Kitz., 133. 
Schröteri, Lemm., 134. 
var. microporum, Lemm., 134. 
simplex, Meyen, 133; scarce in Tan- 
ganyika, 92; mentioned, 90, 01, 134, 
135, 137. 
forma mieroporum, G. S. West *, 
134. 
—-- forma ovatum, G. 5. West*, 
134, 
—— forma radians, (6v. S. West *, 
134. 
var. clathratum, G. S. West *, 
184. 
— var, radians, Lemm., 134. 
— -— var, Sturmi, (т, 5. West *, 133, 
simplex, Reinsch, 133. 
—— var, а, compactum, Chodat, 133. 
—— var. B. annulatum, Chodat, 134. 
Sturmit, Reinsch, 133. 
—— var. radians, Lemm., 133. 
Tetras, Ralfs, 132. 
—-— var, longicorne, Racib., 132, 
Penium, Brcb,, 108. 
adelochondrum, £f», 286. 
australe, Racib., 108. 
lagenarioides, Roy, 195. 
—— var. sydneyense, Racib., 195. 
Navicula, Bréb., 108. 
Pennatie (Bacillariew), 149, 
Pentaphragma grandis, Ridl. *, 319, 
