— 54 - 
month being about the middle of the blooming time. Taking the average of 
the three years, Mniurn sy Iv aticum shows the blooming time to be June and 
the fruiting time the latter half of April and May, time ten or eleven months. 
For Mnium affine ciliare, blooming in June, the fruiting time is the following 
May, time eleven months. 
Mnium Drummondii , of which I felt uncertain, (See The Bryologist 
IX. 3, 55) has been verified by Dr. Grout. It occurs near Mnium affine , which 
is .abundant while Mnium Drummondii is rare. They correspond in dates. 
I first noticed the Giant Bryumjor Rhodobryum roseum in fruit in the early 
spring several years ago, a little clump of it near the drive in Fair Holt. 
The notes, however, have been made from material in Ethan Allen Park. 
It is a large, rather handsome moss with the leaves somewhat crowded into 
a large rosette at the top. The sporophytes are usually clustered. The 
female plants are abundant, the male rare. On Sept. 20, 1906, I found both 
kinds of rosettes with their antheridia and archegonia beginning to open. 
By Oct. 1st their blooming time seemed to be over; the antheridia had dis- 
charged their antherozoids and the archegonia which had not been fertilized 
were turning brown. 
The following spring, April 24th, the rosettes showed the sporophytes 
developing. They could be distinguished with the naked eye and well seen 
with the hand lens. In September this moss had sporophytes, from two to 
four in a cluster, which were tall and green with a suggestion of brown. 
They were pretty closely \vatched until Nov. 27th when they were reddish- 
brown but their lids were on tight. On April 24, 1907, I found these sporo- 
phyte capsules with their lids mostly off, altho a few were on, and the spores 
shedding freely. 
According to these observations for Burlington, Vermont, the blooming 
time of Rhodobryum roseum is the latter half of September and the fruiting 
season the latter half of April, time one year and seven months. But Dr. 
Grout gives the blooming time in the vicinity of New York City as August 
and early September, and the fruiting time as autumn. 
Another beautiful little moss is Bartramia pomiformis. It forms a mat 
of bright green, fruits freely, and the capsules, as the name indicates, are 
somewhat spherical or apple shaped. It is monoicious, and is quite. abund- 
ant at Fair Holt. 
On June 14, 1906, the rosettes of this moss showed antheridia and arche- 
gonia that were old and brown, also those that were fresh, open, and active, 
and still others that were not full grown. In October, the new sporophytes 
were seen with the aid of a hand lens. Following on till the next spring they 
were mature and shedding spores by the middle of May; time, eleven 
months. 
On May i6th,in the Bartramia pomiformis from Fair Holt, the sporo- 
phytes were shedding spores, but in the material from near Colchester Point, 
some of the capsules had their lids on as late as May 26th. 
Prof. Jones tells me that there is about the same difference, ten days, 
in the blossoming of the willows on the hill and the lake shore. Those near 
the cold water of the lake are about ten days later. 
This illustrates in a small way the variations due to different climatic 
conditions in the same latitude and in near by places. 
Jan. 17, 1908. Burlington, Vermont. 
