Ligusticum fllicinum, Watson. 
montanum, Gray. 
Lonicera ciliosa, Poir. 
Symphoricarpus oreophilus, Gray. 
Galium-? 
microphyllum, Gray. 
Houstonia Wrightii, Gray. 
Actinella odorata. Gray. 
Aster ericoefolius, Rothroek. 
Lemmoni, Gray n. sp. 
tanaoetifolius, HBK. 
Bacoharis brachyphylla, Gray. 
Buena gracilis, Gray. 
Baileya pauciradiata, Harv. & Gray. 
Berlandiera lyrata, Benth. 
Bigolovia Hartwegi, var. tenuisecta, 
Gray n. var. 
Wriglitii, var. liirtella, Gray. 
Calycoscris Wrightii, Gray. 
Chsenactis stevioides, Hook. & Aru. 
Cnicus uudulatus, var. megacephalus, Gr. 
Dysodia porophylioides, Gray. 
Encelia frutescens, Gray. 
Eremiastrum bellioides, Gray. 
Filago Arizonicu, Gray. 
Franseria cordifolia, Gray n, sp. 
deltoidea, Torr. 
durnosa, Gray. 
Gaillardia Arizonica, Gray n. sp. 
pinnatifida, Torr. 
Ilieracium Pringlei, Gray n. sp. 
Hymenatheru'm acerosum, Gray, 
eoncinnum, Gray n. sp. 
pentachsetum, DC. 
llymenothrix Wislizeni, Gray. 
Lygodesmia exigua, Gray. 
Malacothrix Fendleri, Gray. 
Melampodium cinereum, DC. 
Parthenium incanum, HBK. 
Pinaropappus roseus, Lag. 
Pectis filipes, Gray, 
prostrata, Cav. 
punctata, L. 
Psilocarphus tenellus, Nutt. 
Rafinesquia Californica, Nutt. 
Neo-Mexicaua, Gray. 
Schkuhria Wrightii, Gray. 
Senecio Douglasii, DC. 
Neo-Mexicanus, Gray. 
Stephanomeria exigua, Nutt. 
runcinata, Nutt. 
Thelesperma longipes, Gray. 
Troximon heteropbylium, Greene. 
Yerbesina Wrightii, Gray. 
Yiguiera helianthoides, HBK. 
Xanthocephalum gymnospermoides, 
Benth. & Hook. 
Zinnia gracdiflora, Nutt. 
Arotostaphylos tomentosa, Dougl. 
Androsace Arizonica, Gray n. sp. 
Primula Rusbyi, Greene. 
Forestiera phillyreioides, Torr. 
Menodora scabra, Gray. 
Acerates auriculata, Engelm. 
Asclepias brachystephana, Engelm. 
Lemmoni, Gray. 
lll fT TIIMH i.', 'T <)IT. 
nummularia, Torr. 
Gonolobus parvifolius, Torr. 
Ilimanostcmma Pringlei, Gray n. gen. 
L ichnostqma Arizonicum, Gray. 
Metastelma Arizonicum, Gray n. sp. 
Rothrockia cordifolia, Gray n. gen. 
Buddleia Pringlei, Gray n. sp. 
Frasera speciosa, Dougl. 
Gilia Bigelovii, Gray, 
poiycladon, Torr. 
Tliurberi, Gray. 
Loeselia glandulosa, Don. 
Phlox longifolia, Nutt., var. Stansburyi 
Gray. 
Ellisia Torreyi, Gray n. sp. 
Nemophila aurita, Hindi. 
Phacelia Arizonica, Gray, 
crenulata, Torr. 
iufundibuliformis, Torr. 
invehusta, Gray n. sp. 
micrantha, Torr. 
Coldenia canescens, DC. 
Cordia Greggii, Torr. 
Eeliidiocarya Arizonica, Gray. 
Echinospermum Rcdowskii, Lehm., var 
cupulatum, Gray. 
Eritrichium angustifolium, Torr. 
canescens, var. Arizonicum, Gray, 
crassisepalum, T. & G. 
liispidum, Buckley, 
pterocaryum, Torr. 
Heliotropium phyllostachyum, Torr. 
Lithospermum angustifolium, Michx. 
Cobrense, Greene. 
Convolvulus incanus, Vahl. 
Cuscuta-? 
Evolvulus Arizonicus, Gray. 
Ipomoea costellata, Torr. 
leptotoma, Torr. 
triloba, L. 
Chamresaracha Coronopus, Gray. 
sordida, Gray. 
Lycium gracilipes, Gray, 
macrodon, Gray. 
Pringlei, Gray n. sp. 
Nicotiaua Clevelandi, Gray. 
Physalis angulata, L., var. Linkiana,Gray. 
Solatium Hindsianum, Benth. 
Antirrhinum Kingii, Watson, 
maurandioides, Gray. 
Castilleia integra, Gray, 
lanata, Gray, 
purpurea, Don. 
Orthocarpus purpurascens, Benth., var. 
Palmeri, Gray. 
Pentstemou stenophyllus, Gray. 
Aphyllon multiflorum, Gray. 
Carlowrightia Arizonica, Gray. 
Pringleophytum lanceolatum, Gray n. gen. 
Siphonoglossa longiflora, Gray. 
Lippia lyoioides, Steud. 
Wrightii, Gray. 
Verbena polystachya, HBK. 
xutha, Lehm. 
Cedronella breviflora, Gray n. sp. 
Hedeoma dentata, Torr. 
Drummondii, Benth., var. 
thymoides, Gray. 
Monarda citriodora, Cav. 
Salvia Henryi, Gray. 
Scutellaria Wrightii, Gray. 
Tetraclea Coulteri, Gray. 
Plantago Virgiuica, L., var. longifolia, 
Gray. 
Boerhaavia scandens, L. 
Frcelichia interrupta, Moq. 
Gomphrena Sonora;, Torr. 
Atriplex elcgans, Dietr. 
lentiformis, Watson. 
Monolepis chenopodioides, Moq. 
Chorizanthe brevicornu, Torr. 
rigida, T. & G. 
Eriogonum Abertianum, Torr. 
alatum, Torr. 
deflexum, Torr., var. 
Aristolochia brevipes, Benth., var. acum¬ 
inata, Watson. 
Plioradendron Californicum, Nutt, 
juniperinum, Engelm. 
Acalpylia Californica, Benth. 
Pringlei, Watson n. sp. 
Argythamnia adenophora, Gray ined. 
sericophylla, Gray, 
serrata, Mull. var. 
Bernardia myricscfolia, Watson. 
Croton corymhulosus, Engelm. 
Pringlei, Watsou n. sp. 
tenuis, Watson. 
Euphorbia dentata, Michx. 
criant.ha, Benth. 
pediculifera, Engelm. 
H. N. Patterson 
dictyosperma, Fisch. & Meyer. 
“ var. 
polycarpa, Benth. 
revoluta, Engelm. 
setiloba, Engelm. 
subpubens, Engelm., var. 
Jatropha angustidens, Mull. Arg. 
canescens, Mull., var. 
spathulata, Mull., var. 
Sebastina biloeularis, "Watson n. sp. 
Salix- 
Agave-n. sp. ? 
Zephyrauthes longifolia, Hemsley. 
Allium reticulatum, Fraser, var. 
Anthericum Torreyi, Baker. 
Calochortus aureus, Watson, var. 
Palmeri, Watson. 
Hesperocallis uudulata, Gray. 
Lilium Parryi, Watson. 
Cyperus-Y 
Scirpus carinatus, Gray. 
Andropogon hirtiflorus, Kunth., subvar 
oligostachyus. 
Aristida bromoides, HBK.? 
purpurea, Nutt. 
Schiediaua, Trin. 
Bouteloua polystachya, Torr. 
trifkla, Thurb. 
Bromus breviaristatus, Thurb. 
Cathistechum erectum, Vasey & Hackel 
Hilaria mutica, Benth. 
Manisuris granularis, Swartz. 
Melica Porteri, Scribner. 
Muhlenbergia distichophylla, Kunth. 
depauperata, Scribner n. sp. 
gracillima, Torr., var.(V) arenicola. 
monticola, Buckl. 
Texana, Thurb. 
Panicum autumnale, Bose, var. pubes- 
cens, Scribner. 
bulbosum, HBK., var. minor, Vasey 
Seleropogon Karwinskyanus, Benth. 
Pappophorum boreale, Led. 
Sporobolus ramulosus, Kunth. 
Stipa pennata, L., var. Neo-Mexicana, 
Thurb. 
fimbriata, HBK. 
Trachypogon Montufari, Nees. 
Trisetum Tolluccense, Kunth. 
Asplenium monauthum, L. 
Cheilanthes myriophylla, Desv. 
Pringlei, Davenport n. sp. 
Gymnogramme hispida, Melt. 
Notholama Aschenborniana, Koltsch. 
ferruginea, Hook. 
Pelhea cordata, J. Smith. 
Printer, Oquawka, III. 
