— 92 — 
tically total absence of any counter-exchange from Africa to Europe presupposes 
something much more definite in the way of southerly migration than has hitherto 
been recognized, difficult as it may be to trace the land connection that would 
have provided the necessary bridge of transit.” 
Twelye new species are described and figured: Sphagnum Keniae, Hymen - 
ostylium crassinervium , Leptodontiopsis elata, Rhacomitrium defoliatum, Bryum 
piano-mar gtnalum, Philonotis speirophylla, Breutelia stricticauhs , Poly trichum 
Keniae , Hygroamblystegium procerum , Calhergon Keniae , Isopterygium send - 
folium , and Rhynchostegiella Keniae , the types of these being in the U. S. National 
Herbarium. Two new varieties are described: Aulacomnium turgidum var. 
papillosum, and Neckera complanata var. maxima. The other species repre- 
sented in the collections were: Sphagnum Pappeanum C. M., S. Rugegense 
var. gracilescens Warnst., Andreaea kilimandschanca Par., Distichium kilimand- 
jaricum C. M., Blindia acuta forma prolixa [evidently proposed as a new form]-, 
Campylopus stramineus (Mitt.) Jaeg., C. procerus (C. M.) Par., C. Joannis- 
Meyeri (C. M.) Par., Leptodontium pumilum (C. M.) Broth., L. Joannis-Meyeri 
C. M., Tortula erubescens (C. M.) Broth., T. Cavalli Negri, Grimmia ovata Web. & 
Mohr, Rhacomitrium alare (Broth.) Par., R. durum (C. M.) Par., Amphidium 
cyathicarpum (Mont.) Broth., Tetraplodon bryoides (Zoeg.) Lind., Pohlia afro- 
cruda (C. M.) Broth., Pohlia sp., Rhodobryum spathulosifolium (C. M.) Broth., 
Bartramia ruvenzorensis Broth., Breutelia subgnaphalea var. densiramea Negri, 
B. auronitens Negri, Rhacocarpus Humboldtii (Hook.) Lindb., Antitrichia kili- 
mandschanca Broth., Pterogonium ornithopodioides (Huds.) Lindb., Pilotrichella 
profusicaulis (C. M.) Par., Papillaria africana (C. M.) Jaeg., Pinnatella Engleri 
Broth., Thamnium Hildebrandtii (C. M.) Besch., Calliergon sarmentosum var. 
subflavum Ferg., Stereodon cupressiformis (L.) Brid., Pleuropsis sericeus (Hornsch.) 
Broth., and Brachythecium implicatum (Hornsch.) Jaeg. 
Dixon notes that “it may be possible to gain some idea of the prevailing 
species on Mt. Kenia from the number of gatherings made of some of them. 
Judged in this way, the most frequent mosses would be: Campylopus stramineus 
(Mitt.) Jaeg., 13 gatherings; Tortula Cavalli Negri, 9 gatherings; Bartramia 
ruvenzorensis Broth., 5 gatherings; Grimmia ovata Web. & Mohr, 5 gatherings. 
None of the others are represented by more than three gatherings each.” 
O. E. J. 
Theriot on Some Chilean Mosses — Monsieur I. Theriot has recently 
sent us a separate of an article 4 dealing with the confusion that has arisen in 
the case of two Chilean mosses. According to the studies of M. Theriot, based 
partly upon a comparison of type material, practically all authors subsequent 
to Schimper have described under Barbula flagellaris a moss which is identical 
with what Sullivant, in the Mosses of the Wilkes Expedition, had called B. 
depressa. Schimper’s original description, however, calls for a Tortula, and 
an examination of the original specimen collected by Bertero shows that Schimp- 
4 Theriot: Note sur une mousse du Chili. Extrait du recueil des publications de la Societe." 
Havraise d’ etudes diverses. ier trimestre, 1917. Pp. 1-7 (repaged?). 
