162 Lloyd and Underwood : A Review of the 



different planes, the terminal branchlets often strobile-bearing and 

 nodding : leaves 3-5 mm. long, cylindric, slender, subulate, spread- 

 ing and upwardly curving : strobiles sessile, 5 mm. long, with 

 small sporophylls (1.5 mm. x 8 mm.) ovate-acuminate, thin 

 with deeply fringed margins : sporangia minute, spherical, trans- 

 versely compressed. 



The plant of the Gulf region seems to differ in no respect from 

 the more tropical form except in size, in the less pronounced up- 

 right habit, and in the length of the strobiles. 



Specimens from the United States have been examined as fol- 

 lows : 



Mississippi: Ocean Springs, July, 1889, F. S. Earle (U). 



Alabama: "Springy clay banks/' Mobile Co., June, 1889, C. 

 Mohr (U, G, N) ; Spring Hill, " common in swamp," Aug., 1897, 

 B. F. Bush (Y). 



Florida: Lake City, Dec, 1894, F. C. Straub, no. 42 (G) ; 



Prairie Creek, A. P. Garber (C, G, N) ; "moist pine barrens/' near 



Jacksonville, Mrs. A. Curtiss (G); E. Fla., Chapman (G) ; Waldo, 



' Jan., 1 87 1, Chapman (C); Oneco, Dec, 1897, E. W. Reasoner (U). 



Widely distributed through the tropics. 



13. L. Sitchense Ruprecht. Beitr. z. Pflanzenk. d. Russ. Reich. 



3: 30. 1845 



Prostrate stems, 20-30 cm. long, creeping along the surface of 

 the ground or a little buried, occasionally branching and rooting 

 with scale-like leaves, sending up frequent aerial stems which 

 branch dichotomously several (4-6) times to form compact masses 

 of vertical terete branches, 5-7 cm. high, with occasional stronger 

 strobile-bearing branches usually projecting above the tuft : leaves 

 2 mm. x 5 mm., lanceolate with a broad base, spreading and 

 curving upward, thick, entire, acute, excurrent, in five rows on the 

 branchlets; peduncles short (less than 1 cm.), veiy slender, with 

 a few minute subulate bracts, or none, the strobiles then being ses- 

 sile upon strong leafy branches : strobiles (0.8 x 2.5 cm.) with 

 broadly ovate sporophylls with erose margins and long acuminate 

 to subulate apices nearly equaling the sporophyll. 



This form has been confused with Z. sabinaefoUum Willd. and 

 Herr Ernst Pritzel, who has kindly examined Wildenow's type 

 sheet for us at Berlin, and has sent some fragments of the sterile 

 branches from the two specimens it contains, assures us that both 

 this plant and what we here regard as true L. sabinaefoUum are a 



