280 THE TASMANIAN FLORA. 



1. L. scARiosuM, Forst. Procumbent, spreading. Dorsal leaves broadly- 

 lanceolate, pointed, 2-3 liaes long. Ventral leaves smaller and narrower. 

 Fruit in dense spikes terminating the branches. L. decurrens, R. Br. 



2. L. DBNSUM, Lab. Erect, stiff, and branched. Leaves narrow, acute, erect, 

 |-1| line long. Fruit in dense terminal spikes. 



Common on heaths. South and Eastern Australia to New Zealand. 



3. L. CLAVATUM, var. fastigiatum, Linn. Ascending, branched. Leaves narrow, 

 acute, somewhat spreading, 2-3 lines long, not tipped with the fine hair of 

 L. clavatum. Spikes dense, 1-2 inches long, often 2 or more together, raised on 

 a nearly bare peduncle 1-4 inches long. 



Very common on mountains. In most temperate climates. 



This plant has been confused with L. caroUnianum, L., which probably 

 does not occur in Tasmania. 



4. L. LATERALE, R. Br. Vaguely branched and spreading. Leaves narrow^ 

 acute, upturned or spreading, 2-4 lines long. Fruit in short, dense, sessile, 

 spikes that are usually, but not always, latei'al. L. diffusum, R. Br., included. 



Heaths at all altitudes. Common. South and Bast Australia to New 

 Zealand. 



6. L. SBLAGO, L. Erect, but often drooping, dichotomously branched. Leaves 

 spathulate, mostly spreading, usually obtuse, \-\ inch. Fertile leaves very- 

 numerous towards tlie end of the branches, seldom assuming a specialised 

 character. L. varium, H., included. 



Very common in woods. Victoria, New South Wales, and most temperate 

 localities. 



3. TMESIPTERIS. 



Fertile leaves indefinitely dispersed, divided nearly to the base into two equal 

 spathulate lobes. Sporangia narrow- oblong, bilocular, and slightly constricted,, 

 formed at the junction of the lobes. 



T. TANNENSis, Bern. Creeping and rootless in the trunks of trfee-fems. The 

 leaves on simple, sub-pendulous, aerial branches. Barren leaves simple, broadly 

 spathulate, muoronate, ^-1 inch long ; each half of fertile leaf similar to a 

 barren leaf, and probably homologous. 



Very common. Eastern Australia to New Zealand. 



SELAGINELLA CEJE. 



Spores, of two kinds, in small sporangia, in the upper axils of undifferentiated 

 leaves. 



Character of the order. 



SELAGINELLA. 



Branches dispersed ... ... \. S. uliginosa. 



Branches basal ... 2. S. preissiana. 



1. S. ULIGINOSA, Sprang. Erect or ascending, 2-6 inches, vaguely branched, 

 perennial. Leaves 1 line long, narrow-ovoid, acute. Sporangia small, solitary, 

 in the upper axils. 



Very common on heaths. Throughout Australia. 



2. S. PBEissiANA, Spreng. Very similar to the last, only annual, very erect,, 

 smaller, and the branches all (or nearly all) from the base only. 



North Coast ; also throughout Australia 



