Calystegia sepium (L.) R.Br.

y0ajv,
BOTANICAL
5*arde*L
K	,^o, îHkê,«^
FLORA OF THE U.S.A.
SflpUXu-	.
ScJo^p.	fe*U»«*uo n
VIRGINIA, Highland County. 1 km SW of
Monterey on rte. 220; grassy roadside bank in
agricultural valley; 38°24' N, 79°35' W.
Climbing up grasses to 1 m; bracteoles strongly
keeled and saccate with overlapping margins; corolla
bright pink. Growing 15 m from 20738 which was
very similar but with corolla white except for very
pale pink tinge near margin and fading to pink.
R.K. Brummitt 20739
2 July 2002
20731, 2073 8,20739 and 20740. Calystegia sepium
cf. subsp. appalachiana Brummitt. These four
collections were all made in similar grassy roadside
habitats within 30 km on the same road, one in WVa
and three in Va, two very close together. In their
habit climbing up grass stems to about lm, in their
strongly saccate and overlapping bracteoles, and in
their general leaf shape (including sinus) they all
looked very similar. However, 20731 had an almost
white corolla with just a faint pink tinge near the
margin, but drying pink; 20738 was similar to 20731;
20739 (growing just 15 yards from 20738) had a
:lear bright pink corolla, exactly right for my concept
)f subsp. appalachiana-, and 20740 had a corolla light
)ink all over. They appeared to be one taxon with
/ariable corolla colour, which I found very
¡urprising. 20731 has a fairly hairy stem, especially
lear the apex, while 20740 has rather more speading
ind angled lobes than the others such as is very
ypical of subsp. appalachiana. One starts to
vonder about hybridisation (C. catesbeiana ???), but
here was no direct evidence for this. R.K.B.
03502344
EX HERB. HORT. BOT. REG. KEW.
THIS MATERIAL IS RESTRICTED. IT IS SUBJECT TO THE RBG KEW
TERMS AND CONDITIONS UNDER WHICH IT WAS SUPPLIED.
03502344