6000 



450 



[Panicum'] [Gramineae], Vuillet. Rev. 

 cult, colon., Paris, 8, 19U1, (I7C-177). 



Westberg, G- 



Jurjev, Acta horti bot., 2, 1901, (32). 



[Paspalum] [Gramineae]. Pilger, 

 Robert. Bot. Jahrb., Leipzig, 30, 1901, 

 (127-238). 



[Pennisetum] [Gramineae]. Fruwirth, 

 C[arl]. D. landw. Presse, Berlin, 28, 

 1901, (735-736). 



Pilger, R[obert]. 



Bot. Jahrb., Leipzig, 30, 1901, (118- 

 126). 



[Perotis] [Gramineae]. Pilger, R. In : 

 Engler, A. Bot. Jahrb., Leipzig, 30, 

 1901, (269). 



[Phalaris] [Gramineae]. Husnot. 

 Paris, Bui. soc. bot., 48, 1901, (187-190, 

 av. fig.j. 



[Pharus] [Gramineae]. Pilger, R. 

 Berlin, Xotizbl. bot. Garten, 3, 1901, 

 (138). 



[Phoenix] [Palmae]. Becker, Cuno. 

 Gartenwelt^ Berlin, 5, 1901, (534-535). 



[Phyllostachys] [Gramineae]. Makino, 

 Tomitaro. Glumaceae Japonicae. Tokyo, 

 1901, Vol. I, No. 5, pi. 17-20). 32 cm. 



[Pinellia] [Aroideae]. Makino, Tomi- 

 taro. Tokyo Bot. Mag., 15, 1901, (130- 

 136). (English). 



[Piperia, n. gen.] [Orchideae]. Ryd- 

 berg, P. A. New York, N.Y., Bull. 

 Torrey Bot. CI., 28, 1901, (266-284). 



[Platanthe)xi] [Orchideae]. Kraenzlin, 

 Fritz. Orchidacearum genera et species. 

 Vol. I, Fasc. 15 et 16. Berlin (Mayer 

 & Muller\ 1901, (897-986). 25 cm. * 



[Poa] [Gramineae]. Britton, N. L. 

 and Rvdberg, P. A. New York, N.Y., 

 Bull. Bot. Gard., 2, 1901, (149-187). 



Haglund, Emil. 



Nyt Mag. Naturv., Kristiania, 39, 1901. 

 (124-12.5). (Swed.) 



Palibin, 1. St, 



Peterburg, Acta horti Petr., 19, 1901, 

 (101-151). (Lat.) 



Rydberg, P[er] 



A[xel]. New York, N.Y., Bull. Torrey 

 Bot. 01., 28, 1901, (266-284). 



[Podocarpus] [Coniferae]. Engler, A. 

 Bot. Jahi-b., Leipzig, 30, 1901, (266). 



[Pogonia] [Orchideae]. Crawford, J, 

 Plant World, Washington, D.C., 4, 1901. 

 (53-54). 



Kranzlin, F. 



In : Engler, A. Bot. Jahrb., Leipzig, 

 30, 1901, (286). 



[Polygonatum] [Liliaceae]. Komarov, 

 V. St. Peterburg, Acta horti Petr., 20, 

 1901, (1-559). (Russ. et Lat.). 



Makino, 



Tomitaro. Tokyo Bot. Mag., 15, 1901, 

 (118). 



[Polystachya] [Orchideae]. Kranzlin, 

 F. In : Engler, A. Bot. Jahrb., Leip- 

 zig, 30, 1901, (286-287). 



[PoHea] [Bromeliaceae]. Mez, Carl. 

 Bot. Jahi-b., Leipzig, 30, 1901, Beiblatt, 

 (1-20). 



[Potamogeton] [Naiadaceae]. Bennett. 

 A. Chicago, 111., Bot. Gaz. Univ. Chic, 

 32, 1901, (58-59). 



Gross, R. 



Jurjev, Acta horti bot., 2, 1901, (33-34). 



Schumann, K. 



In : Engler A. Bot. Jahrb., Leij)zig, 

 30, 1901, (266). 



Suksdorf, W. 



N. D. bot. Monatschr., Arnstadt, 19, 

 1901, (91-93). 



[Pritchardia] [Palmae]. Arcangeli, 

 Giovanni. Firenze, Boll. Soc. bot. ital., 

 1901, (62-65). 



[Prota7'um] [Araceae]. [Engler, Adolf]. 

 Bot. Jahrb., Leipzig, 30, 1901, Beiblatt, 



(42). 



[Puelia] [Gramineae]. Pilger, R[obert]. 

 Bot. Jahrb., Leipzig, 30, 1901, (118- 

 126). 



[Pycreus] [Cyperaceae]. Clarke, C. B, 

 Bot. Jahrb., Leipzig, 30, 1901, Beiblatt, 



(1-44). 



[Reana] [Gramineae]. Chalot, Ch. 

 Agricult. prat, pays chauds, Paris, 1, 

 1901, (129-136). 



[Rliyncospora'] [Cvperaceae]. Harper, 

 R. M. New York,*N.Y., BuU. Torrev 

 Bot. CI., 28, 1901, (454-484), with 

 1 pi.). 



Pilger, Robert. 



Bot. Jahrb., Lei zig, 30, 1901, (127- 

 238). 



