46 PATAGONIAN EXPEDITIONS! BOTANY. 



and their segments are often 8-10 cells broad at the base instead of only 

 3 or 4 cells ; in y. hatcheri, moreover, the segments end in a single row 

 of 10-20 cells, whereas in J. floerkii, there are usually less than 10 cells. 

 The occasional cuspidate leaf-lobes of J. Jiatcheri remind one of the 

 similar structures found in J. lycopodioides, but this latter species is much 

 more robust, and has longer and more tortuous basal cilia and larger 

 underleaves with broader and more densely ciliated segments. 



20. JUNGERMANNIA PROPAGULIFERA Gottsche, Die Lebermoose Slid 

 Georgiens, 45 1. pi. i.f. 6-12. 1890. 



Plate V, Figs. 8-18. 



Paroicous : plants caespitose, mixed with the preceding species, yellow- 

 ish-brown or reddish ; stems creeping or ascending, branching by innova- 

 tions, radiculose: leaves imbricated, ovate-quadrate, obliquely spreading, 

 not decurrent, concave, bifid about one third with subacute sinus and 

 lobes, the antical lobe slightly smaller, otherwise entire (or erose-denticu- 

 late from the presence of gemmae) ; underleaves wanting ; leaf-cells polyg- 

 onal in outline, thin-walled and without trigones; ? inflorescence ter- 

 minal ; bracts in i or 2 pairs, mostly erect-spreading, similar to the 

 stem-leaves but more crispate, sometimes trifid and with sparingly arid 

 irregularly toothed lobes and margins ; bracteole connate on one or both 

 sides, with bracts ovate, bilobed or not segmented, toothed or entire; 

 perianth ovate-cylindrical, composed of a single layer of cells, slightly 

 narrowed and plicate in the upper part, minutely denticulate at the mouth , 

 c? -bracts in 2-4 pairs, situated just below the ? bracts, complicate-bilobed, 

 but similar to the stem-leaves when spread out, scarcely inflated at the 

 base and enclosing i or 2 antheridia; gemmae borne on the leaves near 

 the apices of the lobes, yellowish-brown, oblong, composed of i or 2 cells : 

 capsule spherical, purple, borne on a long hyaline stalk ; spores yellowish- 

 brown, minutely tuberculate ; elaters reddish, bispiral. 



Stems .5-1 cm. long, 0.22 mm. in diameter; leaves 0.95 mm. long and 

 wide; leaf-cells 28 JJL in diameter at base, 22 fi in other parts of the leaf; 

 bracts 1.2-1.35 mm - l n g> 0.85-1.2 mm. wide, bracteole i.o-i.i mm. 

 long, 0.5 mm. wide, perianth 2.9 mm. long, i.i mm. in diameter; gem- 

 mae 20 fji in diameter; spores 12-14 //, in diameter. 



Lapataia. 



