46 



Page. 



Festuca ovina 31, 42 



scabrella 20 



Festiieeii? -^0 



Fowl Meadow-grass 24 



Foxtail -4 



Giant Kye-grass --t 



Homalocenchrus ory zoides •*" 



virginicus 37 



Hordese 43 



Horcli'iini jiibatiiin 32, 44 



luiaillum 44 



Hosackia purshiana 35 



Hungarianbrome 25 



Jauiesia ainericana li 



Kent ucky Blue-grass 25 



Koeleria cristata 29, 41 



Large Rush-grass 27 



Lepidium apetalum 26 



Little r.kie-stem 27 



Loco weed 27 



Lupiuus plattensis 27 



Manna-grass 27 



Meadow Foxtail 8 



Grass 27 



Medicago sativa 10 



Millet. r 28 



Mublenbergia 8 



arizouica 38 



gracilis 38 



gracillinia 38 



inexicaua 38 



Munroa squarrosa 40 



IN^eedle-grass 28 



Orchard grass 29 



Oryzew 37 



Oxytropis lambertii 9, 27 



Paniceie 36 



Pani< iilai'ia atiuatica 27 



iicrvata 27, 42 



Panicuiii capillare 36 



criisgalli 17, 36 



luuticuni 36 



glabnim 36 



juiliaceum 20 



proli fcrinii 36 



sanguiuale 23, 36 



scribuerianum 36 



virgatum 33, 36 



Pepper-grass 26 



Petalostemon candidus 9 



violaceus 9 



Phacidiuni wedicagiuis 17 



TMialaii.lce 37 



Plialaria arundinacea 30, 37 



I'lilcuin alpiuum 38 



I)ratense 33, 38 



Pliiagniiti-s vulgaris 30 



Physocarpus torreyi 14 



Pigfon-grass 24 



Pinus ponderosus 14 



scopulornni 14 



Poa alpiua 28 



arclica 41 



arida 21, 41 



buckleyana 28, 41 



Page 



Poa coioradoensis 41 



corapressa 35,«41 



epilis 41 



fendleriana 42 



flava 24, 42 



lettennaui 42 



luclda 42 



neinoralis 28, 42 



prateusis 25, 42 



rupestris 42 



traceyi 42 



wbeeleri 28, 42 



wolfii 28 



Polypogon monspeliensis 13, 39 



Populus treniuloides 14 



Porcupine-grass 29 



Prairie June-grass 2 J 



Puccinellia airoides 42 



Pursbia tridentata 14 



Iledfieldia flexuosa 40 



Red-top 30 



Reed Canary-grass 30 



Reed-grass 30 



Rubus deliciosus 14 



Rye 30 



Satin-grass 8 



Savastana odorata - 37 



Schedonnardus paniculatus 33, 40 



Scirjius lacustris 13 



Secale eereale 30 



Sheei)'s Fescue 31 



Short-awned Brome 31 



Side Oafs Grama 31 



Sitanion elynioides i) 



Sleepy grass 31 



Slender Fescue 32 



Wheat-grass 32 



Smooth Brome 25 



Solidago canadensis 10 



rigida 10 



Spartlna cyuosuroides 23, 40 



gracilis 40 



Sporobolus airoides 38 



asperil'olins 38 



brevifolius 38 



condensatus 27 



cryptandrus 27, 38 



depaupcratus 39 



heterolepis 21, 39 



bookeri 27 



vagina-Horus 27, 39 



Sijuirrel-tail grass 32 



Stipa comata 28, 37 



peunata nco-mexicana 37 



robusta 31,37 



spartea 29,37 



viridula 23, 31, 37 



Swamp Chess 32 



Sw itch-grass 33 



Tall Grama 31 



Oat-grass 33 



Texas Crab-grass 33 



Timothy 33 



Tril'olium dasypbyllum 15 



hybriduiu 17 



