INDEX. 



445 



Panicum molle, iii. 492. 



monostachyum, iii. 499. 



myosurus, iii. 492. 



myurum, iii. 492. 



nemorosum, iii. 500. 



nervosum, iii. 492. 



neuranthum, iii. 492. 



nitidum, iii. 493. 



nitidum, iii. 485. 



oaxacense, iii. 493. 



obtectum, iii. 493. 



obtusum, iii. 493. 



onurus, iii. 505. 



oryzoides, iii. 498. 



pattens, iii. 496, 500. 



, var. angustifolium, iii. 



496. 



paniculiferum, iii. 505. 



parciflorum, iii. 502. 



paspalodes, iii. 493. 



patentissimum, iii. 493. 



pauciflorum, iii. 497. 



phleiforme, iii. 494. 



pilosum, iii. 494. 



pilosum, var. leiogonum, iii. 495. 



plantagineum, iii. 494. 



polygamum, iii. 491. 



polygonatum, iii. 490. 



polygonoides, iii. 494. 



pregnans, iii. 494. 



prorepens, iii. 494. 



pulchellum, iii. 494. 



pumilo, iii. 489. 



purpurascens, iii. 504. 



rariflorum, iii. 495, 503, 576. 



rectum, iii. 494. 



reflexopilum, iii. 494. 



repens, iii. 495. 



rbizophorum, iii. 495. 



rugosum, iii. 506. 



rugulosum, iii. 495. 



ruprechtii, iii. 495. 



ruscifolium, iii. 495. 



saecharoides, iii. 490. 



salzmanni, iii. 484. 



sanguinale, var., iv. 114. 



sanguinale, iii. 491, 489, 496 ; 



iv. 94, 109. 



scaberrimum, iii. 496. 



schiederi, iii. 577. 



schlechtendalii, iii. 496. 



sciaphilum, iii. 496. 



scoparium, iii. 496. 



setarium, iii. 502. 



silhwi, var. longevaginatum, iii. 



495. 

 sorghoideum, iii. 496. 



Panicum spectabile, iii. 502. 



squamatum, iii. 496. 



stipatum, iii. 496. 



stoloniferum, iii. 496. 



striatum, iii. 492. 



sulcatum, iii. 496, 506. 



sylvaticum, iii. 502 ; iv. 301. 



tenuiculmum, iii. 494. 



thrasya, iii. 497. 



torreyi, iii. 497. 



trichanthum, iii. 492. 



trichoides, iii. 486, 492. 



umbrosum, iii. 497. 



uncinatum, iii. 497. 



unisetum, iii. 498 ; iv. 94. 



unisetum, iii. 506. 



velutinosum, iii. 498. 



verrucosum, iii. 497. 



vicarium, iii. 498. 



vilfoides, iii. 498. 



villiferum, iii. 485. 



violascens, iii. 498. 



virgatum, iii. 498. 



virgatum, iii. 485. 



virletii, iii. 498. 



viscidum, iii. 493. 



zelayense, iii. 502. 



zizanioides, iii. 498. 



Pankea insignia, i. 401. 

 Papaver, i. 28. 



PAPAVERACE^E, i. 26; iv. 4, 97. 

 Papaveracece, iv. 172, 204, 214, 216, 



224, 229. 

 Papaya vulgaris, i. 481. 

 PAPAYE^E, i. 481. 

 PAPILIONACEiE, i. 225. 

 Papilionacece, iv. 178. 

 Pappebitzia, iii. 272. 

 Papperitzia leiboldi, iii. 272. 

 Pappophobtjm, iii. 567. 

 Pappophorum alopecuroides, iii. 568. 



apertum, iii. 567. 



bicolor, iii. 568. 



boreale, iii. 568. 



laguroideum, iii. 568. 



mexicanum, iii. 568. 



pallida, iii. 568. 



wrightii, iii. 568. 



Parabesleria costaricensis, ii. 488. 



triflora, ii. 488. 



Pabathesis, ii 290. 

 Parathesis corymbosa, ii. 291. 



crenulata, ii. 291. 



melanosticta, ii. 291. 



tricbogyne, ii. 291. 



Pabietabia, iii. 161. 

 Parietaria, iv. 149. 



Parietaria debilis, iii. 161. 



lingueefolia, iii. 161. 



microphylla, iii. 157. 



orizabee, iii. 161. 



pennsylvanica, iii. 161 ; iv. 293. 



setpyllifolia, iii. 158. 



Paritium azanzee, i. 121. 



tiliaceum, iv. 162, 165. 



Parkeria pteroides, iii. 625. 

 Pabkia, i. 342. 

 PARKIER, i. 342. 

 Pabkinsonia, i. 327. 

 Parhinsonia, iv. 230. 

 ParHnsonia aculeata, i. 327. 



microphylla, i. 327. 



torreyana, i. 327. 



Parmelia, iv. 148, 149. 



centralis, iv. 150, 151. 



encausta, iv. 150. 



Pabmentieba, ii. 497. 

 Parmentiera aculeata, ii. 498. 



alata, ii. 498. 



cereifera, ii. 498. 



edulis, ii. 498. 



foliolosa, ii. 498. 



lanceolata, ii. 498. 



Pabonychia, iii. 10. 

 Paronychia jamesii, iii. 11. 



mexicana, iii. 11. 



polycnemoides, iii. 10. 



ramosissima, iii. 10. 



Paronyckieez, iv. 225. 

 Pabthenice, ii. 149. 

 Parthenice mollis, ii. 149. 

 Pabthenium, ii. 148. 

 Parthenium argentatum, ii. 148; iv 



55. 



confertum, iv. 55. 



fruticosum, ii. 148. 



hysterophorus, ii. 148; iv. 55, 



103, 112. 



incanum, ii. 148. 



lyratum, iv. 55. 



ramosissimum, ii. 148. 



tomentosum, ii. 148. 



Paspalum, iii. 476. 



Paspalum, iii. 483; iv. 148, 157, 213. 



Paspalum abbreviatum, iii. 476. 



acuminatum, iii. 476. 



affine, iii. 476. 



affine, iii. 482. 



antillense, iii. 481. 



appendiculatum, iii. 476. 



ciliatifolium, iii. 478. 



ciliatum, iii. 479. 



compression, iii. 476. 



compressum, iv. 232. 



3m 2 



