the Genus Streptopogon . 1 1 9 
the range of 5 . erythrodontus in South America southwards 
to the mountains of Bolivia. 
I have found, further, in Schimper’s herbarium at Kew 
a specimen labelled ‘ Barbida mnioides , Mtge. Peruvia, Cara- 
baya, Weddell, July 1847, No. 17/ The moss, which is in 
fruit, is S. erythrodontus. This Peruvian record is interesting 
as tending to connect the Bolivian station with the head 
quarters of the species in the Andes of Quito. 
It may be noted here that there is no true annulus in the 
present species. The exothecial cells are polygonal-rectangu- 
lar, with scarcely thickened walls ; at the mouth of the capsule, 
however, a few rows of cells become suddenly shorter and 
more or less quadrate in shape, with the cell-walls much 
thickened, so that a kind of c false annulus ’ is formed (see 
Fig. 3 1). It is probably to this that Muller refers in his 
description of the capsule of bolivianus as ‘ late annulata.’ 
In 1882 Muller ( 19 ) described a Streptopogon from Mada- 
gascar as follows : 
‘ S. Rutenbergii, C. Mull. n. sp. Monoicus ; caulis dichotomus, 
mm. 10-12 altus ; folia laxa, siccitate subpatentia, torquescentia, e 
basi angustiore elongate oblongo-lanceolata nervo excurrente piliformi- 
cuspidata, margine flavo-limbata, apice spinoso-dentata, laxe reticulata ; 
theca erecta oblongo-cylindrica mm. 3 longa, in pedunculo aequilongo, 
peristomii dentibus rubris valde contortis papillosis linea media notatis ; 
operculum calyptraque desunt. — Wald von Ambatondrazaka, 6. Dec. 
1877, in wenigen Individuen. — Species distinctissima, Strepiopog. 
erythrodonto , Tayl. austro-americano valde affinis/ 
About the same time Muller gave the ms. name ‘ Strepto- 
pogon Hildebrandtii sp. nov.’ to a moss sent out under the 
number 2098 in Hildebrandt’s ‘ Flora von Central-Madagas- 
car,’ from Imerina, Andrangoloaka (Nov. 1880). This moss 
has been mentioned by name by several authors, but no 
description of it has appeared. 
I have seen two specimens of 5 . Rutenbergii , one sent to 
me by Dr. Geheeb, the other from Muller’s herbarium. On 
comparing these with the examples of N. Hildebrandtii from 
