a 
- Brecunum LaNceota. — LANCE-SHAPED | 
BLecuNnum. oi So joct 
Class and Order. 
Cryprocamia Fi1ices. 
( Nat. Ord.—Fuices. ) 
Generic Character. 
Sori lineares continui gemini utrinque ad costam. IJnvo- 
lucra membranacea plana versus costam dehiscentia. 
Specific Character and Synonyms. 
Buiecunum* Lanceola; frondibus cespitosis lanceolatis acu- 
minatis integris, sterili latiore. 
Biecunum Lanceola. Swartz, (according to Sprengel). 
Spreng. Syst. Veget. v. 4. p. 92. 
Biecunvum lanceolatum. Raddi Syn. Fil. Bras.n.118. Ejusd. 
Fil. Bras. p. 52. t. 60. f. 3. 
Descr. Root densely fibrous. Stipites several from the 
same root, tufted, two to three inches long, smooth, or 
rough with a few minute, deciduous scales. Fronds four 
to five inches long, membranaceous, lanceolate, acuminated 
simple and quite entire, glabrous, dark-green above, paler 
beneath, costate with many parallel, simple, oblique nerves, — 
which reach from the costa to the margin. The sterile 
fronds, when present, are seen to be shorter and broader 
than the fertile ones. Sori linear, continuous, one on each 
side the costa, and contiguous to it. Involuecrum continu- 
ous also. Capsules numerous, dark-brown. oe 
From the stove of the Glasgow Botanic Garden, where it 
bears its fructifications abundantly. It is increased by 
parting 
* Breysor, or Baaxyor, in Greek, from Parad, powerless, insipid. 
