D. Stirps. Polyblastiae gothicae: apothecis Parv | 
sporae octonae, dilutius obscuratae, blastidiis paueis. 
13. P. gothica Fries. — 19, P. pseudomyces Norm. 
 Lamy de la Chapelle, Mousses et Hepatiques du Mont- 
Dore et de la Haute-Vienne. 2. Suppl&ment. 
In diesem zweiten Supplement finden sich an interes- 
santen Arten: Hypnum illecebrum L., Hypnum callichroum. 
Brid., Hypnum recognitum Hedw., Fabronia pusilla Schw., 
_ Bryum badium Bruch., Atrichum tenellum Br. et Sch. 
‚Dieranum elongatum Schw., Dieranum strietum Schl., Cam- 
 Pylostelium saxicola Br. et Sch., Grimmia Mühlenbeckii 
'Schimp., Weisia denticulata Brid., Lophocolea minor N. E” 
u.a. — Die Zahl der bisher am Mont-Dore gefundenen 
Laubmoose ist 176, Lebermoose 53. — In der Haute-Vienne 
sind 264 Laub- und 74 Lebermoose bisher beobachtet worden. 
Smith, Deseription of New Species of Diatoms. 
(American quarterly MicroscopicalJournal. I.No.1. 
| 1878.) = 
Homoeocladia capitata Smith, nova spec. Fron 
membranaceous, umbellately branched; branches elongated 
and with corymbose capitate apex. F’rustules linear, valves 
lanceolate with acute and very slightly constricted apices 
frustules densely packed, but not in series, or fascicles 
marginal punctae faint, 35 in .001. Length of frusiule 
0008 in, breadth .0002 in; Frond 1,5” to 2”. — California. 
Meridion intermedium Smith, nova spec. Frustules 
'sessile, cuneate, margins nearly smooth, valves with very 
faint pervious costae in f. v. which are scarcely discernable 
ins. v., cuneate, roundet at the larger extremity. Len; 
00166 to .003. — Tennesee. — er 
- Navicula Kützingiana Smith, nova species. Fru 
'tules linear, valves scarcely inflated, with rounded en | 
and three or four conspieuous striae radiating from the 
‚central nodule, and which are prominent also, along with 
the central nodule, in f. v. Frustules in f. v. quadrangular, 
‚frequently adhering and forming a short filament, and with 
two distinet intra-marginal (bead-like) vittae, at either end. 
Length .0006 to .00085; breadth, f. v. .00083, s. v. .0002 
Striae about 50 in .001. — Normandy. — ee, 
_Navieula parvula Smith, nova spec. Frustules 
small, valves lanceolate, with acute apices. Striae divergent 
