Dicotyledons. 



471 



5400 



Piper, C. V. A new species of Wald- 

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 Bull. Torrey Bot. CI., 30, 1903, (180- 

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Pirlot, Julieu. Le begonia tubereux. 

 Bui. hortic. agric. apic, Liege, 1903, 

 (54). 



Pirotta, Alessandro. Caesalpinia 

 japon'xa, Leguminosae (Giappone). 

 Firenze, Boll. R. Soc. tosc. orti., 28, 

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L'albero della caufora il 



pill colossale d'ltalia. Firenze, Boll. R. 

 Soc. tosc. orti., 28, 1903, (Ul-143). 



Pirotta, Romualdo. Cyfisus Adami 

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Flora della Colonia 



Eritrea. Parte I, fasc. I. Roma, 

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e Longo, Biagio. SuUo 



sviluppo del seme del Cynomorhini 

 coceineum L. Ann. Bot, Roma. 1, 1903, 



(5-7). 



Pitsch, Otto. [Solanum tuberosum ; 

 . . . proprietes de diverses varieles 

 de pomme de terre.] (HoUandais) 

 Landbouwkundig Tijdschrift, Gronin- 

 gen, 1903,(108-115). 



[7Vz/o//un?] ; . . . cul- 

 ture compai-ative de diverses varietes de 

 trefle rouge. (HoUandais) Landbouw- 

 kundig Tijd.sclirift, Groningen, 1903, 

 (189-201). 



Pittock, George M. Amhrosia tri- 

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Plahn, II. Einfluss des Blattes auf 

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Plettke, Fr. Botanische Skizzen vom 

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Betida nana L iin Quell- 

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Plitzka, A[lfred]. Beitrag zur Terato- 

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 Wieu, 52, 1902, (100-107, 159-104, mit 

 ,2 Taf.). 



Podpera, Josef. Ein Beitrag zu den 

 Vegetationsverhaltnissen von Sudbul- 

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Pollard, Charles L[ouis]. A new 

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 Kentucky. Washington, D.C., Proc. 

 Biol. Soc, 16, 1903, (127). 



Pollard, Evelyn Wm. A false 

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Pollatschek, Paul. Ueber Cacaobutter 

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Porritt, Geo[rge]. Late flowering of 

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Poulsen, V. A. A contribution to the 

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 [Pentaphragma elliplicum n. sp.]. 



Praeger, R. Lloyd. The Samphire 

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 Irish Nat., Dublin, 12, 1903, (245).- 



Archangelica officinalis 



in Ireland. Irish Nat., Dublin, 12, 1903, 

 (246). 



Pyrola secunda in Fer- 

 managh. Irish Nat., Dublin, 12, 1903, 



(246). 



Pimjnicula grandijlora in 



Clare. Irish Nat., Dublin, 12, 1903, 



(269). 



The flora of Clare Island 



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 Nat., Dublin, 12, 1903, (277-294, with 



Tlieracium ovarium and 



//. rivale in Ireland. Irish Nat., Dublin, 

 12, 1903, (311). 



Flowering plants and vas- 

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 4 figs.). 



Prain, D[avid]. Novicite Indicaj 

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Preissmann, E. . . . steirischo 

 Sorhus-XrWix . . . Graz, Mitt. Natw. 

 Ver. Steierm., 1902, 1903, (341-346). 



