A SYNOPSIS OF THE GENUS SELAGINELLA. 121 



the final divisions ^-1 in. long, l-12tli in. diam. Leaves of the 

 lower plane crowded, ascending, ovate, acute, ^-1 lin. long, bright 

 green, firm in texture, broadly rounded and shortly rigidly ciliated 

 on the upper side at the base, and a little imbricated over the stem; 

 leaves of the upper plane one-third as long, oblique ovate, acute. 

 Spikes short, square, f-1 lin. diam. ; bracts ovate-cuspidate, 

 sharply keeled. 



Hab. Amazon Valley, Spruce 1317 ! Traill 1420 ! 1421 ! 

 Ceara, iianlner. Bahia, Martins ! 



249. S. GENicuLATA Spring Mon. ii. 227. — S. fernuninata and 

 conduplicata Spring Mon. ii. 229-230. — S. eIou(/ata Klotzsch. — 

 Ijycojxnlium [/('nicuJatani Presl. — Stems 2-3 ft. long, simple, stra- 

 mineous and very distinctly jointed in lower two-thirds or three- 

 quarters, deltoid and decompound npwards, with 3-piunate lower 

 pinna?, all the divisions ascending and pinnately arranged, the 

 final ones contiguous, 1-2 in. long, ^-^ in. broad, their rachis also, 

 like the main stem, conspicuously articulated. Leaves of the lower 

 plane contiguous, ascending, ovate or ovate-lanceolate, acute, 

 l-12th to l-6tli in. long, bright green, moderately firm in texture, 

 truncate at the base, not at all imbricated over the stem, entire or 

 obscurely serrulate ; leaves of the upper plane one- third as long, 

 ovate-lanceolate. Spikes square, |^-f lin. diam. ; bracts ovate- 

 cuspidate, strongly keeled. 



Var. S. tomentosa Spring Mon. ii. 231. — Branches pubescent, 

 divisions ^-^ in. broad. 



Hab. Costa Kica and Nicaragua to the Amazon Valley and 

 Peru. 



250. S. suBAKBORESCENs Hook. 2 Cent. Ferns, t. 84. — 8. eury- 

 clada A. Br. in Crypt. Nov. Gran. 388. — Stems reaching a height 

 of 4-5 ft., simple and unbranched in the lower three-quarters, 

 stramineous, distinctly articulated, deltoid and frond-like at the 

 top, with long- stalked ascending lower bipinnate pinnae, with the 

 branching midway between fiabellate and pinnate, the final 

 divisions reaching 4-6 in. long, ^ in. broad. Leaves of the lower 

 plane contiguous, lanceolate-rhomboid, patent with a falcate acute 

 tip, J-^ in. long, bright green, moderately firm in texture, nearly 

 equal-sided, not imbricated over the stem at the base, cut away on 

 the upper, produced and square on the lower side ; leaves of the 

 upper plane one-quarter as long, lanceolate, acute, much imbricated. 

 Spikes short, square, 1 lin. diam. ; bracts ovate-cuspidate, acutely 

 keeled. 



Hab. Amazon Valley, in forests of the Kio Uapes, Spruce 

 2540 ! 



Subgenus III. — Homostachys. 



251. S. ciLiARis Spring Mon. ii. 233, excl. syn. — Li/copodium 

 ciliare Eetz. — Habit of S. serpens. Stems trailing, reaching h ft. 

 in length, pinnate, the branches erecto-patent, the lower copiously 

 compound. Leaves of the lower plane spaced below the tip of the 

 branchlets, spreading, ovate-oblong, subobtuse, -^ in. long, very 

 unequal sided, cordate and conspicuously ciliated, and imbricated 

 over the stem on the upper side at the base ; leaves of the upper 



