VOL. I1.] The Vegetation of Burns. 121 
top of Mt. Tamalpais; and now, amongst other annuals, it is fre- 
quently found in the loose soil of the ‘‘ burn,’’ and grow to a much 
greater size than usual. 
_ Another most interesting and somewhat rare plant which makes 
its appearance here is the Californian poppy (Papaver Califor- 
nicum),* and it grows abundantly in two or three localities. It 
was discovered only a few years ago upon the Santa Inez mount- 
ains, near Santa Barbara, and I have since seen it growing in quantity 
there on mountain slopes recently burned over and on the soft earth 
along trails. It has been rarely collected since its discovery, and 
why this year it should appear in this region in several dif- 
ferent places is difficult to explain. One locality in which it has 
been found, is along the new trails on the side of Mt. Tamalpais, 
near Mill Valley, a dozen miles from the “‘ burn” on Bolinas Ridge, 
where it is most abundant. 
Nearly as much interest is attached to the presence of Ca/andrini@ 
Brewert, a rare plant of the southern portion of the State. Upon 
Bolinas Ridge and on the sides of the new trails of Tamalpais, this 
year, apparently for the first time, magnificent plants appeared 
spreading over the ground and forming mats three feet in diam- 
eter. 
Silene multinervia is a plant especially abundant on Santa Cruz 
Island, and has also been found in several localities of the southern 
parts of the State and as far northas Monterey. It was described 
as a new species by Dr. Watson a few years ago, and it is not yet 
a common plant although it must be spreading throughout the 
State. This year it appears in great abundance upon the Bolinas 
“burn” of the seaward slope of Mt. Tamalpais. 
The simultaneous unexpected appearance of these three recently 
discovered southern plants under such circumstances gives rise to 
many interesting questions. Mt. Tamalpais, only a few miles dis- 
tant from San Francisco, is a region that has been frequently visited 
by botanical collectors during many years, and is as well known 
botanically as any other part of California, and yet no one has 
before this recorded the presence of these plants, so it seems prob- 
|. nee these notes have been in type an interesting article by C. R. Orcutt, re- 
cording similar instances of the appearance of this and other plants in burned over 
districts of Southern California, has appeared in Garden and Forest. 
