Sie: 
8. I.saccharata approaches ambipua „ differs throush plenty of 
stomata,a shorter velum, less crowed and fewer plate-like indenta- 
tions of the macrospores (the macrospores which I investigated did 
not seem to be fully ripe and, therefor, the indentations were slo- 
ping only very lischtly). More material is desired. 
9. I. paupercula A dubious form between riparia and Engelmanni, 
or possibly a bastard of ambisua and Engelmanni ? "Banks of the Le- 
hish on island near Bethlehem,etc." Herb. Durand, of which you de - 
clare your doubts if all specimens were from the same locality, and 
you wrote " based on a preliminary investigation this plant from 
Bethlehem seens to me to be IL.Engelmanni or riparia and I,echiro - 
1 
spora. 1 received from you 3 weak specimens, which gave me much trouble. 
One was sterile and has toward the base broader, more ripe leaves 
with broader ceils of the epidermis and open stomata ( I examined 
before I had learned that they are to be found on ambisua at the tips) 
this tiny specimen I assume to be ambicua. The two others are fer- 
tile and have stomata, velum covering 1/3,sporaneium pale, however 
rich in sclerenchyma cells ( which have weaker coloring than nor- 
mally for riparia), macrospores almost larger than riparia,the rid- 
zes (B. uses "Leisten" = lasts) more extended and torn, they and the 
almost spine-like Lepyred.... part tendine more to spreading from 
the base than usual. But I do find in the leaves 2 weak vascularr 
bundles but they have 2 medians I That is too many for rivparia and 
too few for Enzelmanni, so that I differentiate in a preliminary 
way for an intermittent type. The name shall in part refer to the 
weakness of the entire plant, and in part to the weak development of 
the vascular bundles. Of course, no certain judgement can be formed 
until this form can be examined in loco and until it can be proofed 
in connection with other forms of the same habitat. Mohr undoubted- 
ly collected riparia near Bethlehem, and from you I received leaves 
7 8 9 10 WEEZE 
: | BOTANICAL 
eloJe)igfelaimc-ti-iat-Te GARDEN 
