INDEX 



1055 



Page 



Xazia 130 



Xemacladus 867 (866) 



Nemastylis 206 (205* 



Nemophila - 72 



Xemoseris 1023 (871) 



NeomammiUaria 606 



Xeottia 211 



Xepeta 774 (769) 



Xerium 682 



Xicotiana 798 (786) 



Xissolia 492 (429) 



Xitrophila 263 (262) 



Nocca 940 



Nolina 199 (17,19,186 



Norta 350 



Notholaena 39 (27) 



asehenborniana 40 



aurea 40 (39) 



bon arteritis 40 



californica 41 (40, 



cochisensis 40 



grayi 41 (40) 



hookeri 41 



hypohuca 41 



jonesii 41 (40) 



lemmoni 4 



limitanea 41 (40) 



nes-leeta i 



parrvi I 



sinuata 40 (39) 



standleyi 41 (40) 



Xothoscordum 192 (187) 



Notonia 870 



Kuttallia 593 



Xvetaginaceae 284 (48) 



Obione 270 (271.272.273! 



Odostemon 332 (333) 



Oedera 974 



Oenothera 624 (16,620) 



albicaulis 628 (625) 



boothii 633 (626) 



brachycarpa 631 (625) 



brevipes 634 (627) 



caespitosa 630 (625) 



cardiophvlla 634 (627) 



chamaenerioides 633 (626) 



clavaeformis 635(627) 



clutei 628 



contorta 633 (626) 



coronopifolia 628 (625) 



decorticans 633 (626) 



deltoides 628 (625) 



epilobioides 624 



flava 631 (625) 



greggii 632 (626) 



hartw,egii 632 (626) 



hirsutissima 627 



hookeri 627 . 



irrigua 627 



kunthiana 631 (625) 



laciniata 628 (625) 



la mpasa na 632 



lavandulaefolia 632 (626) 



leptocarpa 631 (626) 



longissima 628 (625) 



micrantha 633 (626) 



multijuea 634 (627) 



neomexicana 629 (626) 



pallida 629 (626) 



pallidula 63 



parryi 635 (627) 



primiveris 630 (625) 



procera 628 (625) 



pubescens 628 



quadrkulnera 624 



refracta 633 (626) 



rosea 631 



runeinata 62' _ 



seapoidea 63 ; 



serrulata 632 



speciosa 630 



strigosa 628 



taraxacoides 631 



trichoc-alyx 63 



vriglitii _ 631 



Oglifa ... 936 



Oldenlandia. __ 84 



Oleaceae 670 



-- 7i4'-— 42 G7 



Page 



Olearia 870 



Oligomeris 374 



Olneya 466 (13,14.430; 



Onagra 62£ 



Onagraceae 620 (51) 



Onopordon 



Onosmodium 761 



Ophioglossaceae 24 



Ophioglossum 25 (9,24) 



Ophrys 211 



Opulaster 390 



Opuntia 607 (594) 



acanthoearpa 615 (15,610) 



angustata 613 



arbuscula 614 (609) 



aurea 610 (607) 



basilaris 610 (13.607) 



bigelovii 615 (13,609) 



Canada 613 



chlorotica 611 (608) 



clavata 613 



cymochila 611 



delicata 611 



discata- 613 



echinocarpa 615 (13,15.609) 



engelmannii 613 (14.608) 



erinacea 611 (608) 



flavescens 612 (608) 



fragilis 610 (607) 



fulgida 616 (14.15,610) 



gilvescens 612 (608) 



gosseliniana 612 



hystricina 611 (16.607) 



kunzei 614 (609) 



laevis 612 (608) 



leptocaulis 615 (15.609) 



loomisii ' 611 



macroeentra 612 (608) 



parishii 613 (609) 



phaeacantha 613 (14,15.608) 



plumbea 611 (608) 



pclyacantha 610 (607) 



procumbeas 613 



pulchella 613 (609) 



rafinesquii 611 (608) 



ramosissima 614 (13.609) 



rhodantha 611 (608) 



santa-rita 612 (608) 



spinosior 616 (14,19,610) 



stanlyi 614 (15,609) 



stenochila 611 



tenuispina 613 



tttracantha 614 (609) 



thornberi 615 (610) 



tortispina _ ______ 613 



ursina 611 (607) 



versicolor 616 (14,610) 



vivipara 614 



whipplei 616 (609) 



wrightiana 614 (609) 



Orchidaeeae 207 (46) 



Orchis 210 



Oreobatus 395 



Oreobroma 299 (300) 



Oreocarya 751 (752,753) 



Oreochrysum 905 



Oreotirion 207 



Oreoxis 649 (641) 



Orobanchaceae 836 (55) 



Orobanehe 



Orthocarpus 831 (S00) 



Oryzopsis 



Osmorhiza 64 



Osmunda _ 



Ostrya 221 



Oxalidaceae 50S (53) 



Oxalis 50s 



Oxybaphus 288 - 



Oxyria 



Oxy tenia 



Oxytheca. 2 g _ 



Oxytropis 49 _ 



Pachistima 



Pachytophis 



Pachystima 



Padux 



Pagesia 



Palafoxia.- j 



