For Kerner, as you know, has separated three species from what 
had been subsumed under the name of G. germmica, ami named 
them G. austriaca, Kern., G. Stnrmiann, Kern., and G. rhartica, 
Kern. . . . Now G. rhaetica seems dominant in Tirol and 
I do not yet know if all my Tirol specimens are not that form and 
that G. germanica is not there at all. Then the question comes — 
is the form in Switzerland G. rhaetica or G. germanica or do 
both occur there ? . . . Gremli in his 'Excursionstlora fi'ir 
die Sdnveiz,' ">rh edit., 1885, which is three years later than the 
11 of the above, does not notice the" matter and even in 
his l Beifa%e,' published only in 1887, omits to do so, though 
calling attention to the form Sturmiana as occurring neat 
Again, on November 9, 1888 : — " I regret from my selfish point 
of view that you did not go abroad, as I was curious to learn how 
the Gentian forms struck you unguided by the blinkers of 
published floras .... What you tell me about Huxley is 
news .... Where were the two isolated areas in the 
Kn.Lradine and whieli were the two species of Gentian and which 
the hybrid ? When I was on the Albula and on the Julian 
Passes I found a good many hybrids such as those between 
Gentiana rerna, G. hrrirhi/p/ti/ttu, and G. ha \ 'arica, also G. supra- 
luiea x punctata ; to say nothing of other orders." 
A week later, November 17, 1888, he says Huxley's "account. 
of the circu ih lie met with the hybrid form 
Gentiana punctata x lutea is very interesting, and I hope next 
summer he will be able to observe other forms which he will con- 
clude to be of hybrid origin. I wish he would go up to the summit 
of the Albula from Samaden some fine day about the middle 
of July, and I am much mistaken if ho will not come across 
hybrids between G. verna, G. harariea and G. hrn.-hj/phgl/a. 
On the Alp about halfway between Bergtin and the top of the 
pass I gathered one Gentiana supra-Zw-tea x punctata ; several 
Pedicularis recutita x incarnata : and Cardamine alpina x 
resedifolia. In Val Bever just over the Albula ridge Gentu 
Two years later, January 1 9, 1891, he wrote :— " as to Gentians. 
You say you don't believe in the species running into one another, 
as the result of your observations. This is precisely my ex- 
perience, and I have not come upon a single instance po 
other way. With this conviction I was struck with the note 
affixed to specimens of Gentiana Gaudiniana, Thorn, i • 
purpurea i, in the K w Herbarium, gathered by Christener of Bern 
on Jtily 30, 1869. Christener savs 'In alien Uebeigai 
gar nicht selten zwischen unzahligen ex. der Kltern m-ben d.-m 
Martinets Gletscher auf der Alp nant oberhalb Bex. And in 
l''ocK-e-s • | , _...• Berlin, ISM. though nothing 
i^said under the head of G. purpurea x punctata, v.-t at p. -"• 
under it. ,„ , . „„,„.„, ,, 1 . l.ebergangs- 
formen vor,' , , i 'l, „ I rh. se were found in 1819 l,j ' 
and Dumas on the Mole in Savoy. I can't refuse to believe Uus, 
but 1 should very much like to see the specimens. I don t tJunJc 
