STATISTICS OF METASPERMAE. 
645 
C. Table Illustrating Continental Development of Genera 
Represented inthe Minuesota Valley.— Continued. 
NORTHERN. SOUTHERN, EASTERN. WESTERN. 
Lilia|ceae. 
Tofieldia............ Tofieldia.... 
Zigadenu Zigadenus 
Pepe lam 
Veratrum. 
Uvularia. 
frythroniur sates 
Camassia... Camassia. 
Olintonia... Clintonia... . 
UnifolWm: ss cwsese agar |exceseecwnen cs tease we Unifolium.... 
sneer EGS) sale Polygouatum 
ies : edeola 
diate eremvarneciiieas Trillium 
sa avasacore Se genvstalefalsjaisiesenaiera ct ie amg Smilax 
A idaceae 
ones < AY POXIS..6.sic caie ens) HY DPOXIS 6 aseiiaissisinces 
Dioscor| eaceae, 
gudaomeantshclswniesiiates ...| Dioscorea........ ...] Dioscorea 
Trida| ceae. 
APIS) sci5 sees we | TES ysteaars 2 ese ganieses BPS. wisieboaiaalonacdrsiacics 
eslaseslen, BeOS Kueestensls ie se Siscvinehiaa. wie badeis atcakhaetwiensnnneee 
‘Orehid| aceae. 
Oy priped tums: cescas os lexcnsecevesvesas v2 tenes Cypripedilum. ..... 
Orehis icc csecesaunesi os | todeyenanes dian. stisticn se TONS i255 oses 
PRA WON ALLA isi2.z sieiagie-nitice|onccias Wadincbiatas Deter see nde Habenaria 
siaqseierss aie ates Pogonia......... 0... Pogonia... 
APOEDUS Ai icsciisinase! 16 de|lnaeveaine ees Helos vomecuues Arethusa.. 
sie unten o Gyrostachys......... Gyrostachy 
Sb aig pitearesag Peramium........... eramium.. 
Lar el hae Achroanthes........ Achroanthes . 
Leptorchis .. Leptorchis..... Leptorchis.. 
OrallOrhiza ase icciicss| sexes doug easwate s aaetd|lvesnanewsad 
ast wdesiamieates Oathea...............| Cathea 
Aplectrum Aplectrum .......... Aplectrum ......... ‘ 
Juglan |daceae. 
sisdiivioaetneionne Juglans........ Js lansyiesceaesoness 
tiseaiwe wisicie te, Sishsieraicnssasbis weiss BOOTLE sc csitic os. oS Soci | COLA say ide: arse wan 
Myricjaceae. 
paginseiecincvee scxdaioon oa een elll MEYPICAsocssedsian const MY PICA acs idccinssree ve 
Salic|aceae. 
POpUlUSs 22 cased saws os | omeesanaemerantnaedel cece POPUlLUS 40c2 rience es 
Dax cascnccnes ee ee ee oT ee CO ET 
Betul|aceae. 
Carpinus..... 3 Carpinus:s.ccisieccsass 
OStYY Bcicossscn es cee Ostrya . 
2 euiesaheRe RATA FoR ea Corylus. 
satte DRG L IREM CEASE Betula... 
Fagajceae, 
oisiora i casera 4 rpneainancen: |: QU OTCM S Aisisie sig gone e-sl| cere sresqcaniis 
Ulma|ceae. 
‘ UP MUS ss gaan atvenwa ys OV MUS :c2i05 dsscerane 
Celtis cic as saeasecosene Celtis iiccccemnewiis ease Celtis 
Mora|ceae. 
suteni| MOPUS scctcrissencnavsoow MOPS wiscec cis cccccinse 
Humulus 
icl|aceae. 
Chenopodium.... 
DONERE NEE aT Ss 
ASATUM. soc5 oc ssmecs 
Aristolochia % 
Polygo 
Rumex........ Sti jeree 
earners: ere 
Laportea .. 
Adicea .... 
Ramiu mi... ac3...s0008:4- 
Parietaria.........6- 
laceae. 
Comandra 
chiaceae. 
Asarum... . 
Aristolochia ........ 
naceae. 
Salsola... 22220000 
Erythronium 
Camassia .... 
Clintonia. 
Unifolium 
Tris. 
“Gorallorhiza 1120207: 
guys 
RUMOX: vac i204 ae 
Polygonum.......... 
Chenopodium.. 
Corispermum. 
