FOOD HABITS OF MALLARD DUCKS. __ 19 
TABLE I.—Items of vegetable food identified in stomachs of mallard ducks and the number 
in which found—Continued. 
; Common Black Ee 
Kind of food. mallard. | duck. pee 
Totalinwumiber ofstomachsexaminmed see. eye thee seen eee se 1,725 | 622 51 
SUBKINGDOM SPERMATOPHYTA—Continued. 
Lemnacee—Continued. 
Spirodela polyrhiza (greater duckweed).. Seacoast RPT iG Sa?) 2 fon. at sve em OY 
WMolfia columbiang (water meal) 222-2. = 222 sae snetes 222 eee a EER eek CR Bee Be 
Wolfizispa@watermeal) ro tere kere che eee wad DR es 66 1S | Boea Ee 
Eriocaulacez. 
PFOCOUMOTUSD 3. (PIPCWOEL) sce aes Bee ee eee Ree Lee eRe LL eer Pa) Sa, [Se See 
Xyridacee. | 
EX@TISISp= | CVellGw-ey.ed!) Grass) seer nee an eee Re eee RE ee 16) 52% Sen eae 
Commelinacez. | | 
Commelingsps (dayilowen eeeee- ease ae eee eee eee eee eateee Se 1 Oe ae 
Pontederiacee. 
iRantedericordard (pickerel weed)e= eee s2 cen ae es ee ce ee Se ck 31 | 11 2 
Liliacez. 
Wimidentiti cde rete asses sane a ese eR eh oe eee he ea). Da ees haetase tea as 
Convallariacez. 
Vagnend spe (dalse}Solomonss seal) <4 eee ee eee eee nese ae ella Ae he Tse eee 
Trilliacez. 
ETUUNY Spee cia ae eee ee ee cia eee ENE Severe ct. cehn | ess skee 1 al baa a 
Smilacee. ; 
SMIATISD a (SLECN Dram) anatase sees ea ene cee eee Loe ea eee Pee ee 6 2 2 
Marantacee. 
A OLECA TUT ICOLC ee ae aes eae e als ate ha bs oe 5's ANY ON Rey ate pce Resta 
Juglandacez. 
3 CUR EGUAiGG: (DILLE mA PECAT)h isseee shave tne a ai aoe see e xe Oe vil Rai 2 (Re toauts : 
EHCOTID Spx CHICKOLY))- <so-eae saan a ee Soe eae isa woe dei d ee ieeuee le 89 Dh ae 
Myricacee. 
MU nICORCChI ET GA Day DELLY)) Soases Seas aee HSS ens eee see ea ee. ia] acs Bees 16 
VACUO CANO ILEN STS! (DA VIDCLLY) seem at eae eos ea ete = ee eee 71 | eg ees ieee hy 
IARC CISA (DAY DOLE VDE ei ots ce Sic ke ae Sones sweet 29 Gio etad = sete 
Salicacez. ; | 
Saliz sp. (willow), leaves and capsules................---------------- 32 Te | Pees 
Betulacee. | 
Carpinuscaroliniana (hornbeam)... 2.-.<:..:-2.222...22.000 40.28 7 eb, Petia gc. SSL SS 
EB ChILLOAS ea (DING) ease ee Seca = Abend SEO ORO Rea IU Pes Sep Reese eae 
Fagacez. | | 
QUE TGIS CUAL (CATT OES es el a ea aire | UN De Sara Ha Shans oo 
Quercus lyrata (overcup Oak)...--- ESSE Plea ee EMEP DNS arniecayes Ale ie 1S eae \teteekaerien 
Gucieimsispa(uHidentiliedoaks) ..0c%22.522-2e ete te eee a | 35 IG EV =e 
Ulmacez. | 
Planera aquatica (waterelm)...-.------- etc ee ERE ER See RE | 159 Spr laanays 2 
Gehismmissisipmiensis (nackberry)..-.--:2+-+.:-2i22-22)0.8 Ree | Bi WARO STS SINE 2 i 
Celis Spa CiackDernyp)essei= 5 a2 Sal a -l-i- = tre ray Si rely ete eor ea rape eee ASE NSptst eae artes A ase 
Polygonacee. | | 
RuMeM persicanioules (golden dock) .5<- =: 2242 s-ch- ccc sence eee ee | {Sao ae leah Sie 
TCU MNCETAS PA COCKS) Keeeeeet poses Saas Ses cosas a se sseenecae a seeeeeeeeee | 10 7, Nee See a= 
Polygonum amphibium (water smartweed).....-.-------++-++++:------ | 117 | 2 | 1 
Polygonum arifolium (prickly smartweed)..........------------- aL | 8 AS |S YWAE DR co ju, 
Polygonum aviculare (knotweed)...........---.----------- EES AU og to | 190 iy Fue oat uate 0s 2 
Polygonum convolvulus (climbing buckwheat).....---.----.----------- St |e Press Sonya cite 
, Polygonum dumeiorum (climbing buckwheat)....-....---------------- leper oa ee gee aeee! Me 
Polygonum hydropiper (water pepper)...----------------+++------------ 137 11 | Lae Page e. 
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