INDEX COLLECTIONS 



201 



Long (see Hedgcock) 



12041. P. Engelmanni v. 



12048. P. flavescens v. 



15103. P. Engelmanni 



15133, 15155-6, 15180-1, 15214, 

 15242. P. macrotomum 



15169. P. flavescens 

 Lorentz see Hieronymus 



344, 395, 431, 471, 478. P. Liga 



364, 432, 468. P. Hieronymi 



382, 688. P. pruinosum 



632, 1779, 1879, 4772. P. falcifrons 

 & Hiernonymus 



219, 420. P. Liga 



223, 235, .335, 782. P. tucumanense 

 Lumholtz 



30. P. californieum 

 Lund 



21. P. bathyoryetum 



385. P. piperoides 

 Lunt 



6117. P. Hartii 



6118. P. piperoides 

 Lusehnath 



P. crassif olium 



(1835). P. piperoicles 



(1839). P. crassif olium v. 

 Lux see Heyde 

 Lyon (see Bobinsou) 



(1900). P. Lyoni 



(1905). P. ligatum 

 Mandon 



1467. P. Mandonii 

 Manning 



58. P. ligatum 



Marble (see Britton) 



231. P. Wattii 

 March 



1316. P. trinervium 

 Marker 



(1901). P. flavescena 

 Martens 



1622. P. crassif olium 



Martin 



P. flavescens 



P. Perrottetii 

 von Martius 



P. acinacifolium 



P. affine 



P. bathyoryctum 



P. coriaceum 



P. crassifolium 



P. emarginatum 



P. habrostachyum 



P. minor 



P. multifoveolatum 



P. platycaulon 



P. tunaeforme 

 Mathews 



(1846). P. Mathewsi 



Matthes 



573. P. Engelmanni 



Matthews 



(1883). P. juniperinum 



Maxon 



1675. P. antillarum 

 4337. P. piperoides 



Mac Dougal 



(1904). P. californieum 

 142. P. juniperinum 

 612. P. macrophyllum 



McCarthy 



P. flaveseens 

 1879. P. flavescens 



McClatchie 



(1893). P. pauciflorum 

 (1893). P. villosum 



McCrory see von Schrenk 

 McFadyen 



P. flavens 



McGregor see Abrams 



McNab 



68. P. trinervium 



Mearns 



164. P. macrophyllum 

 171. P. flavescens v. 



