762 INDEX. 
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phylla, Ball (Pl. XVI.), 407 ; mosus, 267 ; gracilis, 267; ma- 
porrigens, 406; pubescens, 407 ; crophyllus, 267; ? platystylis, 
reclinata, 409 ; serrata, 410, var. 267; querimbensis,267 ; rubriflo- 
minor, 410; sicula, 407 ; Tour- rus,267; Smithii, 267; speciosus, 
nefortii, 410; viscosa, 739, var. 267; ? sulcatus, 267; tubiflorus, 
fruticescens, Ball, 406. 267; unilocularis, 267. 
Onopordon illyricum, 523; macra- 
canthum, 5238 ; Sibthorpianum, Padina Pavonia . .\ ie eo 
523. 
Onychium japonicum. . 27 
Opegrapha dialeuca, 214 ; subvul- 
gata, 226 ; undulata, Strn. sp. n., 
214. 
Ophioglossum lusitanicum, 737 ; 
pendulum, 34; rhizome of, 5. 
Ophrys apifera, 673, 740; bomby- 
liflora,673 ; lutea. 673 ; Scolopax, 
673 ; Speculum, 673 ; tenthredi- 
nifers a, 674. 
Opuntia vulgaris. . 460 
Orchidacee, ae ee of, i in Rodri- 
guez. 10 
Orchis latifolia, 67 2, var. Durandii, 
Ball, 672 ; longicruri Is sOvles 
mascula, 672 ; papilionacea, 671; 
tridentata, var, acuminata, 671. 
Origanum, 740; compactum, 610. 
Ornithogalum arabicum, 689, 740; 
comosum, var. atlanticum, 688 ; 
narbonense, 689 ; orthophyllum, 
688; sessiliflorum, 689; tenui- 
folium, 688; umbellatum, 688 ; 
unifolium, 689. 
Ornithopus compressus,426 ; ebrac- 
teatus, 426; isthmocarpus, 426. 
Orobanche barbata, 606; densi- 
flora, 604; foetida, 604, var. co- 
mosa, Ball, 604; Hookeriana, 
Ball, n. sp., 605; pruinosa, 605, 
var. speciosa, 605; reticulata, 
604; tetuanensis, 606 ; variegata, 
604. 
Orthotrichum cupulatum . . . 738 
Orthrosanthus, characters of .'76, 112 
chimboracensis, 118, var. gla- 
dioloides, 113; gramineus, 113; 
laxus, 112; Muelleri, 112; mul- 
tiflorus, 112; ; polystachyus, 113; - 
spicatus, is, 
Osmunda javanica... . . . . 84 
TEGANS 2a ty rates rk ie Ale Smee OT: 
Opyris alba. othe poert (ues. boo 
lanceolata). «25 <2: \anpa,¢365D 
Otomeria dilatata, 264; guineen- 
sis, 264; lanceolata, 264; ma- 
diensis, 264, 
Oxalis corniculata, 388; 
388. 
Oxyanthus breviflorus, 267; for- 
sericea, 
Peederiez, tribe of Bubianes > eae 
Pallenis spinosa .-. . « » « BOS 
Palmella Brebissonii . . . . . 237 
Palmoglcea chlamydospora, var. 
Minor |. ob... 6 Se 
Macrococca < +. . suuewEeeeo 
Pancratium maritimum . . .679 
Pandanus SS us Balf. fil. 
sp. m., 11, 22; tenuifolius, Balf. 
fil. sp. n., 11, "22; utilis, 22, 
Panicum Crus- “Galli, 709; repens 709 
Pannaria dichroa,220; nigro-cincta, 
225 ; pannosa, 225; rubiginosa, - 
225. a 
Papaver dubium, 311; hybridum, 
311; Rheeas, 312; rupifragum, 
var. atlanticum, Ball, 3138 ; som- 
niferum, var. setigerum, Ball, 
312; tenue, 312. 
Paramatta, fungi from Pennant 
ER Sixt ees 38 
Parietaria mauritanica, var. diffusa, 
666 ; officinalis, 665. 
Parmelia glabra, 218;  latissima, 
224; perforata, 212, 218, 222; 
perlata, 215, 218, 222; persul- 
phurata, 219; revolutella, My. 
sp. n., 222; subaurulenta, 228 ; 
tinctorum, 211, 215. 
Paronychia argentea, 640,var.mau- 
ritanica, 640, var. velutina, 641 ; 
capitata, 641, var. atlantica, Ball, 
641 ; cymosa,640 ; echinata,640 ; 
macrosepala, 641, var. queriodes, 
Ball, 642. 
Passerina arvensis, 653 ; canescens, 
654; hirsuta, 654; villosa, 654; 
virgata, 654, var. Broussonnetii, 
Ball, 654. 
Patersonia, characters of .77, 150 
babianoides, 152 ; Drummon- 
dii, 152; glabrata, 151; glauca, 
150; graminea, 152; ineequalis, 
152; juncea, 151, var. elongata, 
151; lanata, 151, var. pannosa, 
151; limbata,151; longifolia,151; 
longiscapa, 151; macrantha, 151 ; 
Maxwellii, 151; occidentalis,151, 
var. angustifolia, 151, var. erio- 
stephana, 151, var. latifolia, 151 ; 
pygmea, 151; rudis, 151; seri- 
