
          566.

the amount that fell last year in the same month, the water flowed
very rapidly.  I spent a little time deepening the basin then went 
to the Tipularia patch near by.  Still no flowers; all the leaves
excepting one, still lying on the ground dried up, had disappeared.
The near by marked Podophyllum sterile branches were next looked at.
Both were shriveled up and lying on the ground.  The fertile branches
are, of course, still erect.  A few sterile branches in a similar condition
were next dug up and on each was noticed a long (3 to 4 in.)
shoot; on the fertile branches no shoots were noticed only buds.
The other Tipularia patches were next visited.  No flowers, only a few
shriveled leaves still visible.  On leaving the ravine and going up
the hillside.  I found a pretty specimen of Asclepius purpurascens.
I have not seen a specimen of this for several years, so hailed this
old acquaintance with delight.  At Catonsville I took the car
for Ellicott City, then walked along the B. & O. tracks to Union dam
where I was shortly met by Mr. W.  Here the railroad company 
<s>are</s> is building a tunnel.  The work has just begun.  Already a large
portion of the hillside has been stripped of its forest.  It was to see
if a colony of plants, cypripedium pubescens, growing near this place, were injured that we
arranged this trip to-day.  Luckily the marked patches have escaped
        