157 209 



207. Dryopteris Francoana (Founi.) C. Chr. Biolog. Arh. tilegn. Eug. Warming 



84. 1911. - Pig. 28a. 

 Syn. Aspidiiini Fraiicounum Fouin. Bull. Soc. Fr. 19: 255. 1872. 

 Nephiodiiim stenophiilluiu Bak. Jouin. Bol. 1884: 363. 

 Nephrodiiim Harrisoni Bak. Ann. of Bot. ö: 326. 1891. 

 Dryopteris Harrisoni C. Chr. Ind. 269. 19U5. 

 Polijpodinm suhinteijrum Bak. Journ. Bol. 1877: 104. 



Nephrodiiim subinteyrum Sodiro, Rec. 54. 1883; Cr. va.sc. (|iiit. 263. 1893. 



Dryopteris subintegra C. Chr. Ind. 296. 1911. 



T y p e trom Nicaragua: Chontales, leg. P. Levy nr. 506 ( Herb. Cosson, Mus. Pa ris ! 1. 



Differs from the preceding species, its only near relative, by its regularly 



lobed lamina and by the basal veins being much ascending and not always truly 



united: also it grows much larger; I have seen leaves measuring 40 cm in length 



including the stipe, that is equal to lamina in length but generally the leaves are 



much smaller. 



The erect or ascendent rhizome, which is nearly destitute of scales bears 

 several (10 — 20) fasciculated leaves; young stipes furnished at base with a few small 

 scales with some bi-trifurcate hairs at the margins, glabious or very sparsely and 

 minutely pubescent by stellate hairs, sulcate above. Lamina lanceolate, 1 — 1^3 cm 

 broad below the middle, tapering gradually to the acuminate point, at base shorl- 

 cuneate, dark-green, papyraceous or subcoriaceous. ciliate, midrib above strigose by 

 antrorse hairs, midrib and principal veins beneath setose by simple, rigid, patent 

 hairs, otherwise glabrous, the margins incised regularly about ' :; to the midrib 

 into oblique, broad, obtuse or subacute lobes. Veins about 7-jugate, simple (or 

 rarely furcatel, the lower two pairs connivent to sinus, or, the two basal ones truly 

 united and sending a branch to sinus. Sori inframedial, furnished with a sub- 

 persistent, setose indusium. Sporangia glabrous. 



D. Francoana is a very constant species. The numerous Central-American 

 specimens seen are all alike and the Ecuadorian one (P. subintegrum Bak.) ditters 

 only by its somewhat thinner texture and smaller, deciduous indusia. Baker 

 referred A. Francoanum to N. Skinneri Hk. (Syn. Fil. 288). but later he described 

 the present species as new. — Specimens seen: 



Nicaragua: Cliontales, Levy nr. .'i06 (Mus. Paris, Kew). 



Costa Rica: .Jimenez, Donnell Smith nr. 5097 |B, C, W); Alfaho nr. 153 AV\ 16521 iCi — Tuis près 



Turrialha, Pittieu nr. 11236 (C, W) — Vallée de Durui, Talamanca, Pittier nr. 9406 (C. 



VV) — Chilamate. Pittier nr. 7501 (W — Carrillo. Pittier nr. 1176 |\V) Llanuras de 



Santa Clara. Donneli. Smith nr. 6898 i B. W), 6899 (W) Forêts de TsàUi, Tonduz nr. 



9463 (W) - Wercklé (C). 

 Ecuador: near S. Miguel, Peripa River, Sodiko (C = P. subintegrum Rak.). 



208. Dryopteris Skinneri (Hook.) O. Ktze. 'i: 813. 1891: C. Chr Ind. 293. 

 Syn. Aspidiiim Skinneri Hook. Ic. plant. tab. 924. 1854. 



Nephrodiiim Skinneri Moore; Bak. Syn. 287 (excl. syn.). 



