m 



> 



pq 



< 



8 



Actual No. 



of stomata 



on a sq. mm. 



counted and 



plotted 



PQ 



ooioooiot-oo^MXHaaDo^OJOffl 



^ 





7 



Average No, of 

 stomata per 

 sq. mm. cal- 

 culated from 

 cols. 2 and 3 

 and a table of 

 dimensions 



sq 



CM CN CM CM iH CM SO W M H H CM CI » « M « H 



T) 



®CSQOOOWO".OOC5CJHlO>*-*aM30CTCCO 



McccMeocMeoiOMScMTjtcMco-^co-^Hco-*-*-^ 



6 



Average No. 

 of stomata 



per sq. mm. 

 calculated 

 from col. 5 



P3 



CM CM CM CM CM r-i CM rH CM rH rH CM CM CM CM rH CO 



1 



t> CO O 00 CM -H -* ID CM iH CM CO Oi "O CO O CO rH 

 CM CO CO -H -H CO CO «5 CM 'O CM CO CO -* 'O "tfl CO © 



5 



Average No. 

 of stomata 

 counted in 

 field-circle 



900^ 

 diameter 



^ 



wi>ieio-(iisi80aDoooJC5-fcci-i>oo 



i-lr-liHi-li-lrHi-l i-H r- 1 i— I rH rH rH CM 



-TJ 



l>-CO©rHC~CMCMa0-*CO-*>#>QCi-'#©rHO'5 

 i-H CM rH CO CM CM CM CO rH CO i-l CM CM CM CO CM CM CO 



4 



Average No. 

 of stomata 



on the 



transverse 



section 



P3 



t-»r--+i>ip cpcMCMi>--t<i>-«ptj-?piooo 



CMCO-*COCO-HCO©©U?)©CO©iO©COCOCMCM 



^ 



CMC^i-HGOC^CICMCMt-CCOJCMCMCOOJCOlOajCO 



OlOCO!OtOtDlOi0 1>COCRCCHHX»l-C!-tl> 

 i-l i-H 



3 



Average 

 distances 

 between 

 stomata 



Pq 



©©©-*©©© ©00©©©©©©-*©© 

 CC«SCM00CMCM'^©"*e(5O5©CM'H©OSt-©J0 

 CM CM CM i-l CM CM CM CM rH CM CO CM CM rH rH i-H CM CO 



-r\ 



«OilOO©GO©©©©CM©©©©©©©lC© 

 ©-*©COGC-rt<©-tie-©CMI>»0>-r)<CO-*-«CMCO 

 rHrH CM rHrHrHrHrHrHrH CM HHHHHHHH 



2 



Number of 



longitudinal 



series of 



stomata 



- 



CM CM CM 



©©©© r 7'© r 7— ."^©^©-flCM©©©©© 



rHrHrH ( ^ ) rH < ^ > ^-'^ ) rHi-HrHrHrHrH <-t 

 I— 1 rH rH 



-nj 



CM CM CM CM CM -* CM CM 



»HH_H n HCC r ,H^, r , T) ,HH. n CCCOH 



1 1 1 2 1 2 1 1 2 1 323 1 1^1 1 1 



1-HrHrHrH ft rHrH ft 



1 

 Length of stoma 



O o 



t- -* C- CO © rH CM CM-#©-*HCO©»OlOC-©CO 

 © >ra «5 CO C- C- © CC lO I> CO i.O io to ® io »o i» 



Pq 



© GO -# lO t~ t- lO 200C0©00-*O©-f00»O 



c~ »o © -* c- c- co 2 l oiooc-io©r~t^©»oi© 

 1 1 - 1 1 1 1 1 ©1 1 1 1 1 1 1 1 1 1 1 



■>* rH rH CM -rj< »C © J, H X 3D IO X W "f H lO t- 

 •sO 1(5 US CO !D CO CO Jg LO »C 'CO -*•*-* CO >0> -"*< lO 



1 CO 



©rHt>.00©C-©©00CM©COaDi-H©©-tfCMt- 



©0>0>-*©l-0©"rI<CO'0>00©-r)HLOC~C-©lO»0' 



-r 



OXHlHOlCHJOMOt-XXTHlOt-OXt- 



i^ jo cc o t> c; co cc n co Cv C iC! cc t^ t^ t* 'O cc 

 i I i I i i i i : i i i i i 



H IO H IQ N O l> M HJ «3 ^ E X «J X >; X IO •<* 



io ■* io •* io ie io k "-o -f co o co -^ io co us -* io 



Species of 

 Bromus 





B. mollis 

 B. tectorum 

 B. ciliaris* 

 B. brizaeformis 

 B. secalinus 

 B. macrostachys 

 B. inermis 

 B. pratensis* 

 B. velutinus 

 B. sterilis 

 B. maximus 

 B. madritensis 

 B. Schraderi 

 B. unioloides 

 B. racemosus 

 B. commutatus 

 B. interruptus 

 B. arvensis 

 B. canadensis 



