ГОРНОДА 109 
is stated that “ amphigastria " are wanting, but an examination of 
the specimen sent by Dr. Gottsche to the Gray Herbarium dis- 
closes underleaves of the J. Mülleri-heterocolpa type more or less 
concealed by the root-hairs, and Dr. Gottsche had evidently in- 
tended to represent these in his camera-lucida tracings, especially 
in the figures published by Professor Underwood (/. с.) under 
АШУ IX, X, XIL and Ху Thé каб of the Mt. Dana 
material are mostly less strongly collenchymatous than those of 
Scandinavian specimens of Горйозаа heterocolpa that we have ex- 
amined, yet portions of this same material show all the transitions 
to trigones of the normal size. The plant collected by Miss Byx- 
bee has larger leaf-cells, together with larger trigones, and in this 
respect makes an approach to Jungermannia М еуі Nees, but 
differs from that species in the usually obtuse leaf-lobes, in the 
$ bracts being entire (except for the median cleft) or merely re- 
pand, in the ovoid or obovoid-oblong perianth, which is not at all 
rostellate, and in the presence of transformed spicate gemmiparous 
leaves.. The perianths in this specimen are nearly all falsely dor- 
sal. In the original diagnosis of Jungermannia heterocolpa, The- 
denius writes “fructu terminal (rarius pseudoalari)” and his figure 
shows a terminal perianth. We have seen but one European peri- 
anth-bearing specimen of J. heterocolpa, which we owe to the kind- 
ness of Dr. H. W. Arnell; in this about one fourth of the peri- 
anths have become falsely dorsal or lateral. In this, too, the peri- 
anths have only about two thirds of the length assigned to the 
perianths of the species of Lindberg (Kongl Sv. Vet. Akad. 
Handl. 23°: 43. 1889), agreeing closely in this respect with the 
American forms. 
Inasmuch as Limpricht (Cohn, Krypt.-Fl. Schles. 1: 276. 
187 7) has remarked that an apparent original of Jungermannia 
Bantriensis Hook. (found in Herb. v. Flotow, with the legend, 
“J. bantriensis N. v. Е. Irland, Herb. Hook.! dd. N. ab. Е.”) is the 
Semmiferous 2 plant of Jungermannia Mülleri and as Lindberg 
(Kongl. Sv. Vet. Akad. Напа. 23°: 43. 1889) has observed 
that the Semmiparous forms of J. Mülleri of authors ought prob- 
ably to be referred to J. heterocolpa, we have made an effort to 
схатте the Hookerian material of J. Bantriensis. In response to 
an inquiry addressed to Sir W. T. Thiselton-Dyer, as to whether 
