P, Porsitp 
Monten 
Summary of distinguishing characters, stated by various authors, 
Gero Wile GPs erie es 
leaves’ TON. «ace yas 
length of leaves, mm..... 
breadth of leaves, mm.... 
TDS BV OPA ots. ruahckisrs 
upper surface of leaves .. 
floral bugsS a... sn 
calyx-teeth Scher Heb cn nce eat Nes 
SUOIMEIS Wier tater ess ca sie tes 
length of stamens 
size of capsule, Oe ws 
form of capsule.......... 
style of ripe capsule ..... 
base of ripe capsule-valves 
peduncle of ripe capsules. 
climate of oceurrence..... 
geographical range ....... 
Ledum palustre. 
a small, ereet, not much 
branched shrub, up to tm 

linear 
27—45 
3—o 
8—9 
mostly smooth 
ovoid 
‘rather long ciliate 
mostly 10 
longer than corolla 
3.5 X 6—T 

thin, as long as the capsule 
distinctly recurved 
from a_ straightish base 
evenly curved 
boreal, continental, lowland 
Northern Eurasia, ? Western 
N. America 
Ledum decumbens 
a decumbent, much bran- 
ched shrub, up to 0,5 m 
narrow linear 
(—=18 =i 
(—1,75—3 
(—8 
areolate wrinkled 
ovoid 
short. ciliate 
mostly 10 
longer than corolla 
<x 3—4 
ovoid or subglobose distinet- 

ly smaller and shorter 
thick, often 
capsule 
indistinctly or not recurved 
bent under the 
capsule, otherwise near- 
shorter than 
abruptly 
ly straight 
arctic or alpine, also near 
the coast 
Eastern Arctic Asia, Arctic 
N. America, W. Greenland 
Ledum groenlandicum. 
an erect, not much bran- 
ched shruh op to 1m. 

oblong 
11—20—35 
—6—13 
2—3 
coarsely areolate wrinkled 
subglobose 
short or indistinctly ciliate 


5 
like the corolla 
3—4 445 
ellipsoid or subeylindric 
thin, distinctly longer than 
capsule 
not recurved 
evenly arcuated through 
their whole length 
boreal, lowland 
Northern America, South- 
ern Greenland 
