INDEX—COLLECTIONS 201 
Long (see Hedgeock) 
12041. P. Engelmanni v. 
12048. P. flavescens v. 
15103. Р. Engelmanni 
15133, 15155-6, 15180-1, 15214, 
15242. Р. macrotomum 
15169. Р. 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. faleifrons 
— & Hiernonymus 
219, 420. P. Liga 
223, 235, 335, 782. P. tueumanense 
Lumholtz 
30. P. ealifornieum 
Lund 
21. P. bathyoryetum 
385. P. piperoides 
Lunt 
6117. P. Hartii 
6118. P. piperoides 
Lusehnath 
— P. erassifolium 
(1835). P. piperoides 
(1839). P. erassifolium v. 
Lux—see Heyde 
Lyon (see Robinson) 
(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 
Ж (1901). P. flavescens 
^ Martens 
1622. P. erassifolium 
Martin 
у у Р, flavescens 
— Р. Perrottetii 
von Martius 
— P. acinacifolium 
— P. affine 
— P. bathyoryetum 
— P. eoriaceum 
— Р. 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 
Mae Dougal 
(1904). P. californicum 
142. P. juniperinum 
612. P. macrophyllum 
MeCarthy 
— P. flavescens 
1879. P. flavescens 
MeClatchie 
(1893). P. paueiflorum 
(1893). P. villosum 
MeCrory—see von Sehrenk 
MeFadyen 
— P. flavens 
MeGregor—see Abrams 
MeNab 
68. P. trinervium 
Mearns 
164. P. macrophyllum 
171. P. flavescens v. 
