370 Carl Christensen. 
LXXX. Four new ferns 
by Carl Christensen, Kopenhagen. 
(Originaldiagnosen.) 
1. Dryopteris adenochlamys C. Chr., nov. spec. 
Eudryopteris rhizomate ignoto. Stipitibus ad 5 dem longis, va- 
lidis, stramineis, angulatis, sulcatis, ad basin paleis paucis castaneis 
nitidis instructis, glabris vel minute glandulosis. Lamina ovato-lanceo- 
lata, bipinnatifida, 4—5 dem longa, medio 2!/, dcm lata, in apicem 
pinnatifidum acuminatum sensim decrescente, ad basin breviter attenuata; 
membranacea vel firmo herbacea, pallide viridi. Rachi straminea, qua- 
drangulari, pilis mollibus patentibus deciduis hirta vel rarius dense vil- 
losa. Pinnis numerosis, contiguis, sessilibus, recte  horizontalibus, 
lineari-oblongis, 10—12 cm longis, 1!/, cm latis, basi truncatis, apice 
acuminatis, inferioribus 2—3 jugis abbreviatis, infimis vix 3 cm longis, 
ciliatis, ad costas venasque pilis albidis utrinque hirtis, supra inter 
venas brevius pilosis et sparse glandulosis, subtus ubique densissime 
glandulosis glandulis sulphureis breviter petiolulatis, inter venas glabris, 
ad alam 1!/4 mm pinnatifidis. Laciniis approximatis, subfalcatis, acutis 
vel obtusis, integris, basalibus aequalibus vel paullum longioribus. Venis 
simplicibus, c. 10 jugis, basalibus in sinum excurrentibus. Soris me- 
dialibus vel supramedialibus, parvis; indusiis persistentibus, reni- 
formibus, densissime glandulosis et plus minusve setosis. Sporangiis 
glabris. 
Hab.: Guinea gallica, Futa Djallon, Pita, leg. H. Pobéguin 
no. 9, Jan. 1910. (Typus in Herb. Principis Roland Bonaparte.) 
In general habit and venation closely related to D. patens of America, 
from which it differs by its reduced lower pinna and its very densely 
glandulose underside. Among the African species of Dryopteris D. strigosa 
(Willd.) C. Chr. and D. tomentosa (Thouars) O. Ktze. resemble our new 
species in their glandular lamina, but their indusia are very small and 
soon falling. .D. gwineensis Christ, Journ. de Bot, XXII, 22, 1909 is 
apparently a very near ally of D. adenochlamys, but the author describes 
the species as being exindusiate, and he does not mention whether the 
lamina is glandular or not. In our species ihe indusium is perfectly 
covered with yellow glands. 
2. Lonchitis reducta C. Chr., nov. spec. 
Rhizomate fere globoso, pilis rufis densissime vestito. Stipitibus 
numerosis, dense fasciculatis, vix 10 cm longis, gracilibus, stramineis, 
pilis patentibus molliter villosis. Lamina ovata, 20—25 cm longa, 15 cm 
lata, medio simpliciter pinnata, versus apicem pinnatifida, versus basin 
paulum angustata, ubique molliter pubescente, viridi, tenuiter herbacea. 
Pinnis liberis 5—6 jugis, pinnatifido-lobatis, inferioribus paulum abbre- 
viatis, mediis oblongis, 7 —8 cm longis, 2 cm latis, sessilibus vel bre- 
vissime  petiolulatis, alternis, basi truncatis vel subcordatis, apice 
