Author:
Browning J.,Gordon-Gray K. D.,Smith S. G.
Abstract
Three species of Bolboschoenus (Ascherson) Palla are
reported for Australia and New Zealand.
Bolboschoenus caldwellii (V.J.Cook) Soják and
B. medianus (V.J.Cook) Soják are based on types
from New Zealand (under Scirpus L.).
Bolboschoenus fluviatilis (Torrey) Soják has been
lectotypified by a specimen from North America.
Scirpus perviridis V.J.Cook, the type of which is also
from New Zealand has been considered conspecific with
Bolboschoenus fluviatilis. Achene morphology and
pericarp anatomy of achenes removed from isotypes of Cook’s three
species, Scirpus perviridis,
S. caldwellii and S. medianus, are
described and illustrated by electron micrographs. These achenes are compared
with a representative sample of achenes of each of the
Bolboschoenus species named above, taken from herbarium
specimens collected in Australia and New Zealand. Infraspecific taxa within
Bolboschoenus fluviatilis are briefly outlined. Features
of Bolboschoenus medianus suggest a possible hybrid
origin.
Subject
Plant Science,Ecology, Evolution, Behavior and Systematics
Cited by
10 articles.
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