INDEX TO KEY OF FAMILIES AND GENERA 



143 



Mahernia, 90. 

 Mahonia, 87. 

 Maianthemum, 127. 

 Malacoearpus, 100. 

 Malcomia, 88. 

 Mallotus, 119. 

 Malope, 89. 

 Malpighia, 90. 

 MALPIGHIACE^E, 81, 90. 

 Malva, 90. 

 MALVACE.E, 81, 89. 

 Malvastrum, 90. 

 Malvaviscus, 89. 

 Mammea, 89. 

 Mammillaria, 100. 

 Mandevilla, 111. 

 Mandragora, 112. 

 Manettia, 103. 

 Mangifera, 92. 

 Manicaria, 131. 

 Manihot, 119. 

 Mapania, 133. 

 Maprounia, 119. 

 Maranta, 125. 

 MARANTACE.E, 85, 125. 

 Marattia, 135. 

 MARATTIACE.E, 85, 135. 

 Margyricarpus, 97. 

 Marica, 124. 

 Marrubium, 115. 

 Marsdenia, 110. 

 Marshallia, 106. 

 Marsilea, 136. 

 MARSILEACE^:, 85, 136. 

 Martinezia, 129. 

 Marty nia, 114. 

 MARTYNIACE^E, 83, 114. 

 Masdevallia, 122. 

 Massangea, 126. 

 Massonia, 128. 

 Matricaria, 107. 

 Matteuccia, 136. 

 Matthiola, 88. 

 Maurandia, 112. 

 Mauritia, 129. 

 Maxillaria, 123. 

 Maximiliana, 129. 

 Maximilianea, 88 

 Maytenus, 92. 

 Mazus, 113. 

 Meconopsis, 87. 

 Medeola, 128. 

 Medicago, 95. 

 Medinilla, 99. 

 Megaclinium, 123. 

 Megarrhiza, 100. 

 Melaleuca, 98. 

 Melanthium, 128. 

 Melaspharula, 124. 

 Melastoma, 99. 

 MELASTOMACE.E, 82, 99. 

 Melia, 91. 

 MELIACE.E, 81, 91. 

 MEHANTHACE^E, 81, 92. 

 Melianthus, 92. 

 Melica, 134. 

 Melicocca, 92. 

 Melilotus, 95. 

 Melinis, 134. 

 Meliosma, 92. 

 Melissa, 116. 

 Melittis, 115. 

 Melothria, 100. 

 Meniscium, 136. 

 MENi8PERMACE.fi, 80, 86. 

 Menispermum, 86. 



Notylia, 123. 

 Nuphar, 87. 



NYCTAGlNACEvE, 83, 116. 



Nyctocereus, 101. 

 Nymphaea, 87. 

 NYMPHJEACE.E, 80, 87 

 Nymphoides, 110. 

 Nyssa, 102. 

 NYSSACE.E, 82, 102. 



Oakesia, 128. 

 Oberonia, 123. 

 Ochna, 91. 

 OCHNACE^E, 81, 91. 

 Ochrocarpus, 89. 

 Ocimum, 115. 

 Octomeria, 123. 

 Odontadenia, 111. 

 Odontoglossum, 123. 

 Odontosoria, 136. 

 CEnocarpus, 131. 

 (Enothera, 99. 

 OLACACE^E, 81, 91. 

 Olax, 91. 

 Oldenburgia, 107. 

 Oldenlandia, 103. 

 Oldfieldia, 118. 

 Olea, 110. 

 OLEACE.E, 83, 109. 

 Olearia, 105. 

 Oligobotrya, 128. 

 Oliveranthus, 98. 

 Omphalia, 119. 

 Omphalodes, 111. 

 ONAGRACE.E, 82, 99. 

 Oncidium, 123. 

 Oncoba, 88. 

 Oncospenna, 130. 

 Onobrychis, 94. 

 Onoclea, 136. 

 Ononis, 95. 

 Onopordon, 105. 

 Onoama, 111. 

 Onosmodium, 111. 

 Onychium, 135. 



Ol'HKKJLIISMAI'K.K, 85, 135. 



Ophioglossum, 135. 

 Ophiopogon, 127. 

 Ophrys, 121. 

 Ophthalmoblapton, 119. 

 Oplismenus, 133. 

 Opuntia, 100. 



(/KCIIIllAI K.K, 84, 121. 



Orchis, 121. 

 Oreocaiya, 111. 

 Oreocereus, 101. 

 Oreodoxa, 130. 

 Oreopanax, 102. 

 Origanum, 116. 

 Orixa, 91. 

 Ornithidium, 123. 

 Ornithocephalus, 123. 

 Ornithochilus, 123. 

 Ornithogalum, 128. 

 Ornithopus, 94. 

 OROBANCHACE.E, 85. 

 Orontium, 131. 

 Oroxylon, 113. 

 Orthocarpus, 113. 

 Orthosanthus, 124. 

 Oryza, 133. 

 Oryzopsis, 134. 

 Osbeckia, 99. 

 Osmanthus, 109. 

 Osmaronia, 97. 

 Osmorhiza, 101. 



