J. C. ARTHUR 
Ipomoea tyrianthina 2l 
Iresines calea 74 
celosia 73 
celosioides 73 
elatior 73 
latifolia 74 
Jacobina sp.? 173 
Jatropha urens 86 
Justicia sp. 172 
Kyllinga odorata 119 
Lagascea suaveolens 197 
Lamiaceae 158, 159, 160, 161, 162, 
163, 164, 165, 166, 167, 168, 169 
Lamourouxia cordifolia 20 
dependens 20 
rhinanthifolia 20 
Lantana sp. 52 
Liabum hypochlorum 8 
sublobatum 8 
Lippia asperifolia 51 
myriocephala 51, 157 
strigosa 51 
umbellata 51 
Loeselia ciliata 152 
glandulosa 152 
Lonchocarpus latifolius 41 
Lopezia-hirsuta 143, 223 
Loranthaceae 72, 228 
Loranthus crassipes? 72 
Sonorae 72 
Lupinus montanus 82 
Lysiloma acapulcensis 32 
Lythraceae 142 
Mahonia pinnata 46 
Malpighiaceae 129, 229 
Malvaceae 15, 135, 136, 137 
Malvaviscus arboreus 15, 135 
mollis 15 
Marsdenia mexicana 148 
Meibomia angustifolia 78 
scorpiurus 78 
tortuosa 78 
Melampodium divaricatum 204 
Melanthera aspera 99 
nivea 208 
oxylepis 99 
Melothria scabra 94 
Mesosphaerum pectinatum 165, 166 
stellatum 167 
Mikania cordifolia 66, 217 
scandens 66 
Mimosa albida 34, 35 
albida floribunda 34 
Mimosaceae 23, 24, 25, 26, 27, 28, 29, 30, 
31, 32, 33, 34, 35 
Montanoa hibiscifolia loi 
Pittieri loi 
Monninia sp. 224 
Mucuna Andreana 83 
Muhlenbergia ciliata 114 
quitensis 114 
Neonelsonia ovata 146 
Notoptera brevipes 209 
Onagraceae 143, 223 
Oreobatus trilobus 55 
Panicum barbinode 68 
insulare 110 
Liebmannianum 68 
Parosela diffusa 48 
domingensis 48 
nutans 48 
Paspalum candidum 109 
conjugatum 108 
Humboldtianum 107, 108 
paniculatum 108 
Pavonia rosea 137 
Persicaria sp. 124 
Perymenium Purpusii 97 
strigillosum 97 
Pharbitis hederacea 2 
Phaseolus atropurpureus 75 
lunatus 75 
Philibertella crassifolia 147 
Phyllanthus acuminatus 42, 230 
Pinaceae 227 
Pinus filifolia 227 
Pithecoctenium muricatum 171 
Pluchea odorata 226 
Plumiera lutea i 
rubra i 
Poa annua 116 
Poaceae 67, 68, 69, 70, 102, 103, 104, 105, 
106, 107, 108, 109, no. III, 112, 113, 
114, 115, 116, 117, 118, 119, 220, 221 
