162 ' THE JOURNAL OF BOTANY 
we jan chgnerlaaRs on the structure of the dorsal surface of the 
remove Sections II. and III. “of the latter genus, as given by 
Brotherus, comprising the two species Hookert and C. niti- 
dum, to Pterobryopsis. This se leave to Calyptothecium only 
those species comprised in Section I,, Pseudo-Neckera Broth., 
with flattened stems of Nockoroid "habit, and forming a natural 
group.* 
The se of Pterobryopsis as then constituted will be grouped 
as follow 
Prpnoonvorsi Fleisch. (emend. CREST et Card. & Dixon). 
cet. I. Pseudo-Calyptothecium Broth 
Sect. Il. Pseudo-Pterobryum Broth 
Sect. ITI. Hu-Pterobryopsis rites 
Sect. IV. Pterobryodendron 
Sect. V. Pseudo- Te Broth sub Calyptothecio). 
P. Hookert (Mitt.) Card. & Dixo 
Syn. Meteorium Hookeri Mitt 
alyptothecium oki Broth. 
P, Maxwellit Card. & Dixon. 
alyptothectum nitidum 
Meteorium biplicatum C. uM. ile Brotherus). 
The following is a diagnosis of the new species :— 
Pterobryopsis Maxwellii Card. & Dixon, sp.nov. Dioica; 
robusta, latesoenti-viridis, subnitida; caulis repens, elongatus, 
flexilis, sat regulariter pinnatim ramosus, ramis approximatis, circa 
2 cm. oe 8, Vix compressis, sepe arcuatis, simplicibus, obtusis ; 
folia humida et sicca squarrosa, apice incurvo, paullo concava, ad 
panera rotundata via auriculata, 2-5 mm. longa, 1:75 mm. lata, 
* Since the above was written I have received i sheccsoome published volume 
of the Musci der Flora von Buitenzorg, in which F er gives his latest views 
of these _— somewha +3 modified since the pablicetion of the papers above 
quoted. He now, reco the somew unsatisfacto distinction between 
Brerobrypsic po oe Calpsecthethih. 3 makes the latter genus principally depend 
mersed capsule with preperistome, and the very largely developed basal 
auricles. "Basi ing it thus especially on these characters, he 
Pterobryopsis the species included there by Brotherus under Section Pseudo- 
e 
prefer our proposed rearrangement, which, while still leaving considerable di- 
versity in — at least renders Calyptothecium a — and homo- 
geneous genus 
