INDEX—COLLECTIONS 
Schweinitz 
(1829). P. flavescens 
Schweinitz herbarium 
— P. piperoides 
Seemann 
— P. Bolleanum 
2140. P. Schumanni 
» 2141. P. Reichenbachianum 
Seler 
119, 1763. P. tlacolulense 
422, 4484. P. tamaulipense 
4731. Р. juniperinum 
Selkirk 
1771-2. P. Coryae 
9816. P. californicum 
Sello 
122. P. Selloi 
155. P. eraspedophyllum 
234. P. eraspedophylloides 
498. P. piperoides 
511, 597. P. acinacifolium 
5266. P. erassifolium 
5847. P. holoxanthum 
von Seneloh 
259. P. piperoides 
Shafer (see Britton) 
159, 296, 363, 371, 563, 815, 1109, 
1622, 11823, 11828, 12109, 12403. 
P. antillarum 
296, 371. P. rubrum 
314, 320, 600, 607, 2003. P. triner- 
vium 
331, 3270, 8116, 8517, 8601, 8607, 
8737. P. piperoides 
8590. P. hexastichum 
8817. P. diehotomum 
12178. P. Gundlaehii 
— & Fitch 
1472. P. ehrysocarpum 
Shear 
4200, 4206, 4259. P. macrophyllum 
Shimek 
(1898). P. flavescons 
Short | 
2 (1852). Р. flavescens 
207 
Sieber 
— P. piperoides 
227 pp. P. hexastichum 
227 pp. P. martinicense 
Simpson 
49, Р. macrotomum 
— P. Cockerellii 
Sintenis 
339, 339b рр., 339е, 1270, 1388, 
4154, 4391, 4494, 4614, 4840. Р. 
piperoides 
339b pp., 887, 4894, 5297, 6060. P. 
chrys.carpum 
885, 887b, 3035, 2292b, 3912, 5562, 
6624, 6701. P. antillarum 
887c, 3034, 3246, 3248. P. triner- 
vium 
2345b, 2348, 3058, 4288, 6114, 6419. 
P. dichotomum 
2836, 5383. P. hexastichum 
5409, 6758 pp. P. tetrapterum 
6758 pp. P. racemosum 
Sitgreaves 
27 — P. juniperinum Ё. 
Skehan 
(7899). P. juniperinum 
Small 
Т (1893). P. flavesceus 
— & Carter 
8479. P. Northropiae 
Smith 
(1872). P. macrotomum 
34, 1306. P. trinervium 
183, 2310. P. flavescens 
245 pp., 1305. P. ehrysocarpum 
245 pp., 248, 263, 1278, 2039. P. 
piperoides 
297. P. hexastichum 
360. P. tamaulipense 
374. P. flavens v. 
1280. P. venezuelense 
. 1281. P. exiguum 
1282, 1285. P. Degenianum 
21283. P. Herbert-Smithii 
1284. P. sanetae-martae 
2097. P. robustissimum v. 
