XIV 
FIGuRE 
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lll. 
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149. 
ILLUSTRATIONS, 
Distribution of P. pyrularium...........2.0. 000 e cece eens ce eeeeee 
Distribution of P. haenkeanum................-. 02 ce eee cece eee 
P. ineptum 
Distribution of P. ineptum...-....22...000 0c cece eee eee eee eee 
Distribution of P. millegrana...........22.20.20 0202 eee eee eee 
Distribution of P. glutinosum..........0 2.002000 eee eee eee 
Distribution of P. rudgei.... 22.22.0002 00 0c cee eee ee eee 
Distribution of P. megiston..........0..000000 0022 eee eee ee eee 
Distribution of P. ralapense...........2..000 000 ee 
Distribution of P. polycaulon........... 0.200002. e cee eee ee eee 
Distribution of P. strigosum............... 00000 cece ee eee eee eee 
Distribution of P. aciculare.... 2.0.0.0. ee eee ee 
Distribution of P. chrysopsidifolium............0..0 000200 e eee 
Distribution of P. fusiforme.............. wee ec eee cece eee eee a 
Distribution of P. arenicoloides..............0000-022 2002 e eee eee 
Distribution of P. ovinum............. 2.00202 ee ee 
Distribution of P. neuranthum..............200 20 c ee eee eee ee ee 
Distribution of P. nitidum...........0000 00 eee cece cece ee 
Distribution of P. multirameum........2....0.00020 202 eee eee ee ee 
Distribution of P. yadkinense.......2..2.. 00.0000 eee eee ee eee 
Distribution of P. roanokense..........0..0.00000 cece eee eee ee eeee 
Distribution of P. caerulescens...........00.00020 2c e eee eee eee 
Distribution of P. lewcothrix........000 002 eee ee eee 
Distribution of P. wrightianum.........2..0.00000- 220 e cece eens 
Distribution of P. tennesseense.............-.0 000200 
Distribution of P. acwminatum.......... 200000000 cee ee eee eee 
Distribution of P. olivaceum.............000 002 e eee eee eee eee eee 
Distribution of P. villosissimum............2....2-0220 2 eee eee 
Distribution of P. pseudopubescens.........-----2- 22000220 eee ee 
Distribution of P. sphaerocarpon...........-2.-20.0020020c eee eee 
Distribution of P. erectifolium.........- cee cece eee eee eee ee eeee 
Distribution of P. albomarginatum...............220.20-200-000- 
Distribution of P. portoricense.............-....0----220-00- eeeee 
Distribution of P. lancearium..............20-.22222000-- cece eee 
Distribution of P. nodatum............ 2.2.0 0c cece cece cence eeeee 
Distribution of P. scoparium........--.22-- 22000222 e eee eee eee 
Distribution of P. viscidellum............0020- 2000 e eee eee eees 
Distribution of P. joorii...................- cece cece eee ee eeee 
Distribution of P. albomaculatum.......0.....02000c0cece ee eeeee 
P. cOTdOVENSC.... 22 ee cee cece ence eeeee 
P, COrdOvenSse... 0. ee eee ee cece cece eee eee 
Distribution of P. cordovense............200 00020 eee ee eee 
P. chiriquiense.......2...200 0200 e ee ec cee eee 
Distribution of P. chiriquiense..............---- wee e eee eee 
Distribution of P. obtusum....................-0.-0-0202-22 0c eee 
P, stagnatile......... 02.2000 eee eee eee eee ee 
Distribution of P. stagnatile.............2.0.-.2.0.-002 20020222 
Distribution of P. grande............0 0000 ee ee eee eee 
P. tuerckheimti....... 200.0000 ccc cece ce cee ce cece eceeeeeee 
Distribution of P. tuerckheimii...........02-0.000000 00 cee ee eee 
Distribution of P. zizanioides............0. 0c ccc cece cece ececeee- 
P. hirtum.. 
ee 
Distribution of P. hirtum.......... ec eee eee eee 
