819 
INDEX OF PLANTS, 
Mushroom, boot, 601. 
— cup, 587, 588. 
Mycena, 619 — 621. 
Mycenadeae, 617. 
Mycetoidese, 532. 
Myelomyci, 507. 
My 1 ins, 693, 694. 
My riodacty le,*J-30i,302 
Myriodactylon, *f*301, 
302. 
Myriophyllum, 331. 
Myrotheciadeae, 569. 
Myrotliecium, 569. 
N. 
Nardius, 694. 
Neckera,745,*f*747,748, 
749, 758. 
Nemania, 516 — 519. 
Naemaspora, 527, 531, 
532. 
Nemasporideoe, 531. 
Nematomyceae, 547. 
Nephroma, 426, 427. 
Net, water, 300. 
Nidularia, 587. 
Nodularia, 288. 
Nostoc, 301,349, -{-351, 
352. 
Nostoch,351, 352. 
O. 
Oak, agaric of the, 638. 
— sea, 391. 
Octospora, 665,-^666 — 
670. 
Odonthalia, 364. 
Odontia, 649, -j-651. 
Oligotrichum, 719,720. 
Olivia, 349, 350. 
Olla, 587. 
Omphalia, 61 1 — 614. 
Onygena, 580. 
Onygenadeae, 580. 
Opegrapha aenea, 506. 
— astroidea, 479. 
— atra, 507. 
— betulina, 503. 
- — calcarea, 505. 
— cerasi, 502. 
— conglomerata,503. 
— dendritica, 503. 
— denigrata, 507. 
— - diaphora, 504. 
— dispersa, 506. 
— elegans, 503. 
— epipasta, 506, 507. 
Opegrapha epiphega, 
505. 
— faginea, 505. 
— fuliginosa, 506. 
— herpetica, 506i 
— lichenoides, 504. 
— Lyellii, 503, 
— macularis, 5 05. 
— microscopica, 507. 
■ — nimbosa, 504. 
— notha, 504, 505, 
— obscura, 479. 
— Persoonii, 505. 
— petraea, 505. 
— pulverulenta, 502. 
— quercina,505. 
— radiata, 479. 
— reniformis, 479* 
— rimalis, 506. 
— rubella, 506. 
— rupestris, 505. 
— scripta, 502. 
— serpentina, 503. 
— siderella, 506. 
— varia, 504. 
— venosa, 507. 
— verruearoides, 504. 
— viridis, 506. 
• — vulgata, 506. 
Opegraphideae, 502. 
Opuntia, 347, 381. 
Orchal, 454. 
Orthotrichum, 7 IT, f 745 
—747. 
Oscillatoria,-|-280 — 283 
Oscillatorideae, 280. 
Osmunda, 378. 
Over, turn, 617. 
P. 
Pallavicinius, 684, 685, 
775. 
Pal mella,f348, 349,363 
Paimetta, 368, 369. 
Pandulphinius,688,689. 
Papa, 686. 
Parellus, 454. 
Parmelia, 436 — 444. 
— affinis, 440. 
— albella, 453. 
— aleurites, 442. 
— aquila, 441. 
— Atlantica, 435. 
— atra, 449. 
— Borreri, 437. 
— brunnea, 446. 
— Bnrgesii, 399. 
— caesia, 443. 
— candelaria, 445. 
Parmelia, caperata, 437. 
— carneo lutea, 454. 
— cerina, 452, 456,475. 
— chry soph thalma, 435. 
— ciiiaris, 434. 
— circinata, 448. 
— citrina, 445. 
— Clemen tiana, 439. 
coarctata, 449. 
— conspersa, 442. 
— corrugata, 438. 
■ — craspedia, 452. 
— crassa,444. 
— cretacea, 398. 
— crispa, 396. 
— cycloselis, 444. 
— diatrypha, 436; 
— diffusa, 442. 
— dispersa, 448. 
— effusa, 451. 
— elacista, 449. 
— elaeina, 439. 
— cncausta, 441. 
— epigea, 446. 
— erythrella, 456. 
— exigua,450. 
— Fahlunensis, 441; 
— farinacea, 407. 
— farrea, 443. 
— fascicularis, 398* 
— fastigiata, 406. 
— liaccida, 400. 
— fluviatilis, 397. 
— frustulosa, 451. 
— fuciformis, 426. 
— fulgens, 447. 
— furfuracea, 435. 
— furva, 400. 
— fuscata, 451. 
— • fusco lutea, 473. 
— gelida, 448. 
— glaucoma, 453. 
— glomulifera, 437. 
— herbacea, 431. 
— hypnorum, 446. 
" — impolita, 480. 
— jubata,408. 
— laciniata, 401. 
— laevigata, 443. 
— lanuginosa, 439. 
— lentigera, 447. 
— lepidora, 445. 
— leucomala, 434. 
— lutescens, 453. 
— marginella, 401. 
— marmorea, 473. 
— melaena, 397. 
— murorum, 447. 
— muscicola, 402. 
— nigrescens, 399. 
— olivacea, 438. 
3 G 2 
