IMPOUNDING WATER TO CONTROL BREEDING OF MOSQUITOES. 
TABLE 38.—Vegetation and depth of water in Bayou Walnut, Mound, La., 
9 
before 
impounding, July-August, 1915—Continued. 
Vegetation. 
Sta- 
tion 
Species. Common name. Location. 
WOMNASDPe ee ae oe Muckweedss sae eae Floating on water......- 
peas occiden- | Buttonbush............ Bed and margin......... 
alis. 
Salix mMoTAS Saag nou y a Swamp willow.......... Margin, overhanging. ... 
Zizaniopsis miliacea. ...- AQUATIC OT ASS= = yeerg ere Bedsin wahers 2228. 
eee Asclepias perennis....... Milicweead 0) ae ea Margin ee Sica air Sel cee a 
Phytolacca americana. ..|-Pokebetry --.-2- 020.2 .5.).-..- OC eee ne ere 
Brunnichia cirrhosa..... Buckwheat vine.......-. Margin, overhanging 
Persicaria een DMaruweede-ss) ene M argin. ayy echt at eee ae 
Ampelopsis arbroea - -| Peppervine Ene Dec ae ee as Gay ere 
Bignonia radicans....... Trumpet-creeper........ Margin, overhanging. ... 
Lenina Spe. 27: <-hncs4- Duckweed: 3.5. oe sees Floating on water....... 
Jussiaea diffusa......... Primrose-willow......... TWALCIE ee eee co ote. 
eopbalanthus occiden- | Buttonbush............-. Bed and margin......... 
alis. 
Salix nIOT ae sec cee Swamp willow.........- Margin, overhanging... 
2..---|) Zizaniopsis miliacea...-- Aquatic grass.........-- Bed, in water..........- 
Asclepias perennis....... Milkweed: .25 5 ase Margin dat re eae eS 
Phytolacea americana. ..| Pokeberry..............|-.-.- CORSA ee ee 
Brunnichia cirrhosa....- Buckwheat vine:....... Margin, overhanging 
Persicaria opelousana...| Smartweed.............. WG iGah nse OS eee ee 
Bignonia radicans....... Trumpet-creeper.......- Margin, overhanging.... 
MEMNA SPs. - esas ce Muckweedee eee sme Floating On-water..f.2.- 
Jussiaea diffusa......... iPrimrose-wallow-.2- 2.2.4! Im waters: 2... .2ce os 
eopbalantius, 0 occiden- | Buttonbush............. Bed and margin......... 
alis. 
Bers esi) CAN& NipTa....-.-/5-2.2- Swamp willow.......-.- Margin, overhanging. ... 
Zizaniopsis miliacea..... Aquatic grass-.:...-.-2. Bed; in.water.....22-.-- 
Panicum colonum......- DiGChHiETaSS ss ce ee eee Margin Soe AS nd em sal £8 
Persicaria opelousana . - Smartweed........-...-|----- COR sen teeth er 
Asclepias perennis....... Miatlkswiee dh r= s/s caer etal coe CO Say. Gees sale 
Meme SPP a2... -e en Duckweediss i562 s- see Floating on water....... 
Jussiaea diffusa...-..-.. Primrose-willow..-...-.- Iiniewaeneeie re ena 
Wie pop pelantius occiden- | Buttonbush.........-... Bed and margin........- 
alis. 
Salixamignde asa ee ss Swamp willow.......-.- Margin, overhanging. ..- 
Zizaniopsis miliacea..... INGUADIC SNASS secon ee ees Bed in waler- ese ea - 
Lemna spp.------..----- Miekweed no. seer Floating on water......-. 
Jussiaea diffusa. - ...| Primrose-willow.. .----- Timer aie iss... 22 Sas oe ee 
(ali Sta epic bu occiden- | Buttonbush............. Bed and margin........- 
talis 
DA OMOT A ee ece sc hst er Swamp willow .....--..-- Margin, overhanging 
Zizaniopsis miliacaea....) Aquatic grass......---.-. Bed; in water......-.--- 
MemNMASDPecs2es5-25 oe DuCKWweedins cts. ecees Floating on water.....-- 
6 Pepbalentins occiden- | Buttonbush..........-.- Bed and margin....-..-.. 
sree talis. 
SaleMore SS eet es Swamp willow.....-.--- Margin, overhanging - -.. 
Zizaniopsis miliacea...- - AQUI STASS= see sooo Bed in: watere=.oe- 5... - 
hemmnaisppseiss2-- ches Djckweed.? 4 oA fae ic = Floating on water....-.- 
(ee a8 Sale migiie.. 22s o..- Swamp willow.......-.- Margin, overhanging - -.- 
Zizaniopsis miliacea..... AQUIAbICISTASS...- 2. ke oor Bed and margin........- 
WEMNASD Pes. soe eS =.0 Daiekweed'= 55-55. Floating on water....-..- 
8 Cephalanthus occiden- SULTON USM yet =e Bed and margin........-. 
coves talis. 
Saline miprapees sce 5. on. Swamp willow.-....----- Stumps at margin....... 
Zizaniopsis miliacea....- INGUIAUIC CLASS 1228s ane ae Bed and margin........-. 
15{21000 0%) 0) 0 ee ee WMiTcksaweedere. ones sane Floating on water......- 
9 Cephalanthus occiden- | Buttonbush.........-.--- Bed and margin... 
oe, oe talis. 
Salnxenigtaceeees See. = Swamp willow...-.....-- Stumps along margin - 
Zizaniopsis miliacea..-- - NGAI CG PTASS = 255 5am cr = Bed and margin......... 
EMA: SPPsecse sci =-'s- DTiCKweeGeee ese =ner a Floating on water......- 
5 Cephalanthus occiden- | Buttonbush.....------.- Bed and margin........- 
102 --\2 talis. : 
Salixenmtonrd <2. T5252 ss a Swamp willow ..-------- Stumps along margin - -- 
Zizaniopsis miliacea..... Aquatic grass. .....-.--- Bed, IM-WAbCL. 2 = se nes = 
Salix nigra........------ Swamp willow.....-..-- Margin, 0. - 2.9 e= -e- 
16a au IOLA 226 = ons - -'< = = 
i libata? ese 
14... Ariza miliacea..... 
iF AoW pee Nb bret a i tei eee 
Aquatic grass 
Swamp willow 
gaece grass 
Swamp willow 
Bed@inwatert.n.. <5. = 
Trees in bed, 
along margin. 
stumps 
; | inches to 1 foot. 
@ i; inches. 
Depth of water 
in channel. 
3 inches to 1 foot 3 
inches. 
| inches to 1 foot. 
inches. 
inches to 6 inches 
inches. 
2 inches to 8 inches 
(one-third dry). 
PERE DORS o-thirds 
dry). 
6 inches. 
ae aoe (one-third 
Dry vasa hoof- 
prints and mud 
cracks). 
Do. 
\Dry, except small 
ty pool near bridge. 
.| Dry, except one 
small pool. 
