"GEOCALYX 121 
than the perigynial tube, with which it is coalesced for two thirds 
its length, the unfertilized archegonia (1, 2, or о) situated near the 
base of the free portion. Capsule nearly cylindrical, dehiscing to 
the base by straight valves, these composed of two layers of cells, 
the cells of the outer layer with inconspicuous columnar or nodu- 
lar thickenings, those of the inner layer with semiannular bands; 
seta moderately long ; involucellum short, goblet-shaped, finally 
surrounding the base of the seta.  Elaters bispiral. 
І. GEOCALYX GRAVEOLENS (Schrad.) Nees, Naturgesch. Eur. 
Leberm. 1: 98. 1833. А Op. ен. 2: 397. 1830: 
Jungermannia graveolens Schrad. Syst. Samml. Krypt. Gew. 
7-5. 1797. | 
Saccogyna graveolens Lindb. Act. Soc. Sci. Fenn. 10: 500. 
1875. 
Bright or olive-green, caespitose : stems 6-20 mm. long, .22- 
-3 mm. in diameter: leaves plano-distichous, less commonly semi- 
vertical, imbricate or approximate, rather rigid, subquadrate-ovate, 
-1.4 mm. x .55—1 mm., bidentate or bilobed 1-1 (rarely 1) their 
length, the lobes acute or now and then somewhat obtuse, parallel 
Or Sometimes slightly connivent, the sinuses rounded or subacute ; 
leaf-cells 24-48 и, scarcely enlarged toward the base, thin-walled 
With small trigones, the numerous chloroplasts commonly ar- 
ranged іп а ring leaving a clear area in the middle and often a 
hyaline peripheral border; cuticle finely granulate-papillate : 
underleaves appressed, bifid to below the middle, the lobes lanceo- 
late, entire, nearly parallel : autoicous: 4 branch .3-1.2 mm. 
long: 9 bracts 4 Or 5 : perigynium cylindrical, about 2.5—3 mm. x 
1 mm., its entire outer surface sparingly radiculose: capsule 1— 
CO Пит. x .5~.63 mm. seta 8-20 mm. long ; spores 11-16 p, 
У granulate-papillate; elaters 110-200 м x 9-14 м, somewhat 
obtuse, 
On a charred stump of Seguoia sempervirens, Eureka, May 31, 
1896 (no. 938). The species occurs also on moist soil and rocks. 
Our single Californian specimen bears a few perigynia and dehisced 
“psules, but we have not observed 4 branches upon it with any 
certainty, 
"C СЕРНАТО2ТА Dumort. р. р. тах. Rec. d'Obs. Jung. 18. 
1835. 
8 Jungermannia $ Cephalosia Dumort. р. p. max. Syll. Jung. бо. 
1931. 
