Last modified: 17 August 2005

3560 Maackia amurensis
 214 Maclura pomifera
 477 Magnolia
 815 Magnolia ashei
 215 Magnolia campbellii
 216 Magnolia campbellii alba
5098 Magnolia campbellii Caethays Clone
 649 Magnolia campbellii Charles Raffill
7883 Magnolia campbellii Darjeeling
7897 Magnolia campbellii Ethel Hillier
5654 Magnolia campbellii mollicomata
4708 Magnolia campbellii Princess Margaret
 217 Magnolia dawsoniana
 218 Magnolia delavayi
6329 Magnolia denudata
4407 Magnolia denudata Conspicua
5457 Magnolia Evesham hybrids
 219 Magnolia grandiflora
 221 Magnolia grandiflora Exmouth
4413 Magnolia grandiflora Goliath
 220 Magnolia grandiflora Lanceolata
 222 Magnolia grandiflora Undulata
7894 Magnolia Heaven Scent
5731 Magnolia kobus
 224 Magnolia kobus borealis
6937 Magnolia lilliflora
5915 Magnolia lilliflora Nigra
4992 Magnolia loebneri
 225 Magnolia macrophylla
7893 Magnolia Manchu Fan
 828 Magnolia mollicomata
 226 Magnolia obovata
6328 Magnolia rotfelsiana
 227 Magnolia salicifolia
 228 Magnolia sargentiana
5099 Magnolia sargentiana robusta
7892 Magnolia Sayonara
 234 Magnolia sinensis
 229 Magnolia soulangeana
8426 Magnolia soulangeana Alba
6881 Magnolia soulangeana Alba Superba
4705 Magnolia soulangeana brozzonii
 230 Magnolia soulangeana Lennei
 821 Magnolia sprengeri
5655 Magnolia sprengeri Diva
 231 Magnolia stellata
8848 Magnolia stellata Rosea
7665 Magnolia stellata Royal Star
4993 Magnolia thompsoniana
 829 Magnolia tripetala
1257 Magnolia veitchii
1423 Magnolia virginiana
 999 Magnolia watsonii
 235 Magnolia wilsonii
1214 Magnolia x highdownensis
8158 Magnolia x loebneri
8289 Magnolia x loebneri Leonard Messel
7820 Magnolia x soulangeana Lennei Alba
7666 Mahoberberis aquisargentii
2251 Mahonia
 236 Mahonia aquifolium
7125 Mahonia aquifolium Apollo
7668 Mahonia aquifolium Atropurpurea
8553 Mahonia confusa
8552 Mahonia gragilides
 239 Mahonia japonica
 237 Mahonia japonica x Bealei
8240 Mahonia japonica x media Buckland
5748 Mahonia lomariifolia
8290 Mahonia media Underway
 240 Mahonia napaulensis
3933 Mahonia siamensis
 242 Mahonia sinensis
4158 Mahonia swaseyi
8487 Mahonia x media 'Charity'
8840 Mahonia x media Winter Sun
7884 Malus
 243 Malus floribunda
6285 Malus hupehensis
3697 Malus kansuensis x Lemoinei
3698 Malus kansuensis x Lemoinei Profusion
 245 Malus kansuensis x Lemoinei Red Profusion
 731 Malus niedzwetzkyana
6579 Malus x purpurea
2306 Malva
4067 Malva sylvestris
 247 Mandevilla suaveolens
5831 Marsilea quadrifolia
7237 Matteuccia struthiopteris
7011 Matthiola
 956 Meconopsis
 957 Meconopsis aculeata
8549 Meconopsis Crewdson hybrids
8657 Meconopsis Grandis G.S.600
5539 Meconopsis grandis PSW 5423
5540 Meconopsis grandis PSW 6002
8658 Meconopsis grandis Slieve Donard
8548 Meconopsis Slieve Donard
 249 Medicago arborea
2108 Melaleuca armillaris
5904 Melaleuca decussata
 250 Melaleuca elliptica
5421 Melaleuca ericifolia
5906 Melaleuca squarrosa
 485 Melaleuca wilsonii
 251 Melianthus major
2150 Meliosma cuneifolia
2001 Mentha citrata
 252 Mentha requienii
3678 Mentha rotundifolia Variegata
 253 Mespilus germanica
 255 Metasequoia glyptostroboides
3637 Metrosideros
 254 Metrosideros lucida
1444 Metrosideros robusta
1334 Metrosideros tomentosa
1034 Michelea
4530 Michelia doltsopa
1166 Michelia figo
5784 Michelia longifolia
3970 Michelia pitscata
5993 Microbiota decussata
 258 Microcachrys tetragona
 773 Milium effusum
 260 Mimulus aurantiacus
2902 Mimulus cardinalis
5350 Mimulus glutinosus
5608 Mimulus guttatus
5542 Mimulus lewisii
8783 Mimulus moschatus
 263 Mimulus ringens
 264 Minuartia verna Aurea
2192 Mirabilis longiflora
 766 Miscanthus
7238 Miscanthus sinensis Gracillimus
 913 Mitraria coccinea
 265 Mitraria mollis
8605 Monarda Beauty of Cobham
8253 Monarda Cambridge Scarlet
8741 Monarda fistulosa Prairie Night
8458 Monarda Scorpion
 266 Morus alba
7279 Morus alba Platanifolia
8260 Morus nigra
1491 Muehlenbeckia complexa
 267 Muehlenbeckia complexa pohnehue
6086 Musa
 268 Musa basjoo
2179 Muscari armeniacum
1174 Muscari atlanticum
 974 Muscari latifolium
2183 Muscari neglectum
4217 Mutisia
5975 Mutisia chamatidae
1402 Mutisia clematis
1188 Mutisia coccinea coccinea
 971 Mutisia ilicifolia
1031 Myoporum laetum
1366 Myosotidium hortensia
1300 Myosotis scorpioides
5834 Myriophyllum proserpinacoides
1145 Myrtus
4846 Myrtus bullata
 271 Myrtus communis
4154 Myrtus communis Flore Pleno
 936 Myrtus communis Microphylla
 273 Myrtus communis Tarentina
8545 Myrtus communis Variegata
 274 Myrtus luma
 275 Myrtus obcordata
 276 Myrtus ugni