PLANTAE LINDHEIMERIANAE. 
Polymnia Uvedalia 225, 179 
Polypremum procumbens 10 
Polypteris callosa 179 
Hookeriana 
as Palafowia Hookeriana 41 
texana 
as Palafoxia tezana 14 
Pontederia cordata 
as P. lancifolia 28. 
Portulaca lanceolata & vars. 154 
retusa 154 
Potamogeton diversifolius spicatus 55 
lonchites 150, 196 
as P. natans var. 55 
Proserpinaca pectinacea 191 
Prosopis juliflora 167 
as Algarobia glandulosa 34, 181 
Prunus glandulosa 35 
gracilis 35 
minutiflora 185, 168 
rivularis 186, 168 
serotina 
as Cerasus serotina 186 
Psoralea cuspidata 172, 167 
cyphocalyx 172, 167 
floribunda 173 
hypogaea scaposa 173 
obtusiloba 71 
rhombifolia 167 
Ptelea Baldwinii 162 
trifoliata mollis 33 
Pterocaulon virgatum 40 
Ptilimnium laciniatum 
as Daucosma laciniata 211 
Pyrrhopappus carolinianus 14 
grandiflorus 42 >, 
=P. scaposus DC. 
Quercus cinerea 54 
texana 193 
virens 26 
see Q. virginiana 
virginiana 193, 194 
as Q. virens 26 
Ranunculus macranthus 160 
as R. repens macranthus 141 
oblongifolius 
as R. texensis 2 
pusillus Lindheimeri 
as R. trachyspermus var. 3 
repens macranthus 141 
see R. macranthus 
terensis 
=R. oblongifolius Ell. 
trachyspermus 3 
trachyspermus Lindheimeri 3 
==R. pusillus Lindheimeri Gray 
219 
Rhamnus carolinianus 33, 163 
lanceolatus 33 
Rhus copallina lanceolata 158 
see R. copallina leucantha 
copallina leucantha 158, 164 
as R. copallina lanceolata 158 
microphylla 165 
Toxicodendron 159 
trilobata 164 
virens 158, 164 
Rbhynchosia menispermoides 6, 168 
minima 6, 31, 168 
texana 171, 168 
texana angustifolia 168 
Riccia fluitans 158 
Ricinella myricaefolia 
see Bernardia myricaefolia 148 
Rivina laevis 189 
portulaccoides 51, 189 
Rosa foliolosa 186 
Rottboellia cylindrica 
as Tripsacum cylindricum 55 
Roulinia unifaria 143, 182 
Rubus trivialis 168 
Rudbeckia alismaefolia 12 
amplexicaulis 
as Dracopsis amplezicaulis 227 
bicolor 227 
Ruellia ciliosa 
as Dipteracanthus ciliosus 22 
ciliosa longiflora 
as D. Drummondii 50 
Drummondiana 147, 186 
justiciaeflora 22 
=Hyegrophila lacustris Nees 
Parryi 186 
strepens cleistantha 
as Dipteracanthus micranthus 49 
tuberosa 186 
as Dipteracanthus nudiflorus 21 
Ruppia maritima 29 
Rutosma texana 158 
see Thamnosma texana 
Sabbatia calycosa 15 
campestris 15 
Salix Humboldtiana 194 
nigra 194 
Thurberi 194 
Salvia azurea 20, 32, 187 
ballotaeflora 187 
Engelmanni 187 
farinacea 146, 153, 187, 188 
_ pentstemonoides 153, 188 
Roemeriana 146, 188 
texana 146, 188 
Salviastrum teranum 
see Salvia texana 146 
