INDEX. 



441 



Oncidium mirabile, iii. 291. 



nebulosum, iii. 284. 



oblongatum, iii. 284. 



obovatuni, iii. 284. 



ocb.matocb.ilum, iii. 284. 



ochmatochilum, iv. 295. 



cerstedii, iii. 280. 



onustum, iii. 284. 



omitborbyncbum, iii. 284. 



ornithorhynchum, iv. 302. 



pacbypbyllum, iii. 284. 



pachyphyllum, iii. 280. 



— panduriferum, iii. 280. 



parviflorum, iii. 283. 



pauciflorum, iii. 286. 



pelicanum, iii. 285. 



peliogramma, iii. 284. 



pergameneum, iii. 284. 



pbymatocbilum, iii. 285. 



pinellianum, iii. 279. 



polycladium, iii. 285. 



psittacinum, iii. 283. 



pusillum, iii. 282; iv. 270. 



ramosum, iii. 279. 



— — rariflorum, iii. 285. 



rariflorum, iv. 304. 



reflexum, iii. 285. 



reteineyerianum, iii. 285. 



roseum, iii. 280. 



rupestre, iii. 285. 



russellianum, iii. 283. 



sanguineum, iii. 280. 



, var. auriculatum, iii. 283. 



skinneri, iii. 285. 



spbacelatuni, iii. 285. 



sphacelatum, iv. 269, 301. 



spilopterum, iii. 279. 



splendidum, iii. 285. 



stelligerum, iii. 285. 



stenopetalum, iii. 279. 



stenotis, iii. 285. 



stipitatum, iii. 286. 



stramineum, iii. 286. 



stramineum, iv. 301. 



suave, iii. 286. 



suave, iv. 295. 



suaveolens, iii. 288. 



suttoni, iii. 286. 



suttoni, iv. 303. 



tenue, iii. 286. 



tenue grandiflorum, iii. 281. 



tetrapetalum, iii. 286. 



tigrinum, iii. 286. 



tigrinum, var. splendidum, iii. 



285. 



tricolor, iii. 286. 



tricuspidatum, iii. 286. 



Oncidium unguiculatum, iii. 286. 



verrucosum, iii. 288. 



vinosum, iii. 283. 



viperinum, iii. 286. 



warneri, iii. 287. 



warscewiczii, iii. 287. 



wendlandianum, iii. 286. 



wentwortbianum, iii. 287. 



wraycs, iii. 282. 



xanthochlorum, iii. 284. 



ONCOBE^E, i. 56. 

 Oncostylis, iii. 462. 



armaria, iii. 459. 



— : — ciliata, iii. 459. 



dubia, iii. 459. 



hispida, iii. 460. 



nigricans, iv. 157. 



scbaflneri, iv. 93. 



tenuifolia, iii. 459. 



truncata, iii. 459. 



Onoseris, ii. 253. 

 Onoseris isotypus, ii. 254. 

 Onosma strigosa, ii. 380. 



trinervia, ii. 380. 



Onosmodium, ii. 380. 

 Onosmodium strigosum, ii. 380. 

 Onosmodium strigosum, iv. 291. 

 Onychacanthus, ii. 509. 



berlandierianus, ii. 509. 



cumingii, ii. 509. 



speciosus, ii. 509. 



Onycbium angustifolium, iii. 618. 

 Operculina tuberosa, ii. 395. 

 OPHIOGLOSSACE^E, iii. 697. 

 Ophioglossum, iii. 697. 

 Ophioglossum, iv. 304. 



bulbosum, iii. 698. 



crotalophoroides, iii. 698. 



palmatum, iii. 697. 



reticulatum, iii. 697. 



vulgatum, iii. 698. 



Ophiorhiza mitreola, ii. 340. 

 OPHRYDE^E, iii. 304. 

 Ophrydece, iv. 195. 

 Ophryococcus, ii. 32. 

 Opbryococcus gesnerioides, ii. 32. 

 Ophryoscleria asperrima, iii. 469. 



lucida, iii. 470. 



mitis, iii. 470. 



Ophryosporus, ii. 79. 

 Opbryosporus ovatifolius, ii. 79. 

 Ophrys ciliata, iii. 297. 



macrostachya, iii. 210 ; iv. 89. 



Opbthalmacantbus bourgsei, ii. 604. 



gemmiparus, ii. 504. 



parvus, ii. 506. 



roseus, ii. 507. 



OpMhalmacanihm speciosus, ii. 507. 



Opizia, iii. 567. 



Opizia, iv. 279. 



Opizia stolonifera, iii. 567. 



stolonifera, iv. 297. 



Oplismenus, iii. 500. 



Oplismenus, iii. 503. 



Oplismenus angustifolius, iii. 501. 



burmanni, iii. 501. 



cbondrosioides, iii. 501. 



colonus, iii. 501. 



colonus, iii. 494. 



cristatus, iii. 501. 



crus-galli, iii. 501. 



crus-pavonis, iii. 501. 



depauperatus, iii. 501. 



bolciformis, iii. 501. 



holciformis, iii. 503. 



bumboldtianus, iii. 501. 



liebmanni, iii. 502. 



lobaceus, iii. 502. 



polystacbyus, iii. 502. 



rariflorus, iii. 502. 



repens, iii. 494. 



setarius, iii. 502. 



spectabiUs, iii. 502. 



sylvaticus, iv. 114. 



tenuis, iii. 503. 



tbiebauti, iii. 502. 



zelayensis, iii. 502. 



Oplotheca gracilis, iii. 19. 



interrupta, iii. 19. 



Opuntia, i. 549. 



Opuntia, i. 501; iv. 140, 141, 144, 

 213, 233, 246, 247. 



Opuntia albicans, i. 549. 



amyclaea, i. 549. 



angusta, i. 549. 



angustior, i. 550. 



arborescens, i. 549. 



arbuscula, i. 549. 



arenaria, i. 549. 



basilaris, i. 550. 



brevispina, i. 551. 



brunnea, i. 553. 



bulbispina, i. 550. 



candelabrif ormis, i. 550. 



clavarioides, i. 550. 



coccinellifera, i. 549, 554- 



crassa, i. 550. 



cristata, i. 551. 



darwinii, iv. 247. 



decipiens, i. 550. 



decumbens, i. 550. 



ecbmocarpa, i. 550. 



emoryi, L 550. 



engelmannii, i. 550. 



