XIV ILLUSTRATIONS. 
Page 
Fia. 360. Distribution of P. boscit molle..... cece cece cece eee eeeeeeeeeeeee 320 
361. P. obtuswm. ....ccce cece ee eee ee eee eee ee ee ee etree rere eee eens 321 
362. Distribution of P. obtuswm.........-..--002 eee eee eee eee cece eeee 322 
363. P. hemitomon.......-.0- 2c eee c cece eee cette erent seeeeeeees 323 
364. Distribution of P. hemitomon..........----- 2-20 e eee eee eects 324 
365. P. ciliatissimum........------ 2-022 ee eee eee eee Lecce eee ceeeeee 324 
366. Distribution of P. ciliatissimum..........-.----++--- 2s eee eee ee 325 
367. P. zizanioides.........200 0. cece ee ee eee eee teen e ee ee ete eeeees 326 
368. P. gyMnocarpon.....2-- 2-0 eee cece cece cece tee e tenet terest n sree 327 
369. Distribution of P. gymnocarpon......--.-----0++ee eee e cece teens 328 
8370. P. decolorans....ccece ence cence nce cence enn een eee nee cceeeenaes 328 
