KEY TO THE GENERA AND SPECIES OF BRUISH HEPATI0.1-: 159 



,. (Some of the lobes of leaves equal in size 7 



(None of the lobes equal 8 



r-J L'^bes mostly nearly equal, stems not ri<j:id ulicina 



I Lobes frequently unequal, stems markedly rigid diversiloba 



gj Per. smooth, without angles Macvicari 



(Per. distinctly angled = 9 



Q ( Stips. usu. twice larger than post, lobe 10 



i Stips. not twice lirger than post, lobe 1'2 



fTufte<l ; stips. large, leaves imbricate, greenish or yellow 11 



10-' Not tufted ; stips. smaller, delicate, leaves hardly imbric, often reddi'^h 

 { Holtii 



Pellucid, shining when dry ; stips. less than three times larger than 



post, lobe serpijUi folia v. j^ldnfuscida 



Not pellucid, yellow, larger, leaves more oblong; stips. of upper leaves 



three times larger than post, lobe .flava 



/Leaves pellucid, shining when dry; stips. smaller than post, lobe; 



! angles of per. crenulate patens 



12 { Leaves little pellucid, less shining when dry; stips. as large or half 



larger than post, lobe : angles of per. usu. entire ...serpyllifoUa v. 



V cavifolia 



Leaves with styliform appendage calcarea 



Leaves without styliform appendage 14 



^ . f Leaves echinate, lobes greatly unequal Bossettiana 



(Leaves not echinate, lobes nearly equal 15 



-.;- (Lobes mostly aoute, frequently papillose; per. rare ttiicroscopica 



(Lobes obtuse; perianths common minutlssi7na 



11 



.{ 



. j Post, lobe large, rounded-cordate, widely crossing the stem ...voliita 



(Post, lobe m. or 1. quadrate, not or little crossing the stem 2 



iy f Paroicous ; frequently with per complanata 



"^ ( Dioicous ; rarely with per 3 



.,( Mature leaves very conxex, brown; post, lobe tumid aqiiilegia 



^ ( Mature leaves flat or slightly convex, brown or green ; post, lobe Hat. . . 4 



. (Leaves olive or reddish brown, no gemmte on leaves 5 



(Leaves usu. green, leaf-margin frequently gemmiferous ...Lindbergii 

 /Per. compressed at apex, bilabiate; post, lobe quadrate, outer angle 



- j acute, remote from the stem Garringtonii 



^ '\ Per. terete, trumpet-shaped ; post, lobe with upper margin usu. rounded, 

 V outer angle if present nearer the stem, plant much smaller ...Holtii 



PORELLA. 



(Stips. ciliate-dentate, leaves usu. toothed, plant shining, acrid 



1-i IcBvigata 

 \ Stips. entire or occ. slightly dentate at base 2 



o (Post, lobe minute, lingulate-oblong, ant. lobe ovate-oblong ...pinnata 

 (Post, lobe larger, broadly ovate to oblong, ant. lobe broader 3 



(Rather flaccid; leaves subimbric, post, lobe longly decurreut 

 rividaris 

 Stiff; leaves closely imbric, post, lobe scarcely decurrent 4 



/Ant. lobe obliquely ovate, trigones small, post, lobe usu. about half 



. J breadth of stips. platyphylla 



1 Ant. lobe rotund-ovate, trigones large, post, lobe nearly as broad as 

 I stips Thuja 



