74

it accordingly freely, prefacing
that whatever I may have
to say about details does
not affect the favorable
opinion just expressed
about the work as a whole

p. 218. lines 20-23. The sheath is
often well defined in other
orders besides Scytonemaea
e.g. [?], Microcoleus, [?]
and if your consider [Sirosiphon?]
as one of the Scytonemaea the
sheath is often thin.

p. 220. lines 1. & 2. How about
Macrocystes, Nereocystes, [?]
certainly they are not simple.

p. 265 lines 23 et seg. The [Hucaceaea?]
are not very long lived. Many
are annuals or still shorter
lived. The true [sic.] [Hucaceae?]
are not very large certainly
not to be [cowpored?] with
[phaeuogaurs?]. Few [Hucaceae?]
are as long as 10 ft although