528 65. CEROPTERIS. 



waxy powder; veins free, generally forked or pinnate. Diels, in Engl. & 

 Prantl, Nat. Pfl.Fam., I*, fig. 139, C. {Neurogramme). 

 Chiefly neotropical. 



f. Both barren and fertile fronds powdery beneath. 



+. Fronds 2-pinnatifid. (1) C. tartarea. 



+.+. Fronds 3-pinnatifid. (2) C. calomelanos. 



•i>.+. Fertile fronds only powdery beneath. (5) C. chrysosora. 



* (1) C tartarea, I^ink, C. Cfar., Ind. Fil.; Gyrrmogramme tartarea, 

 Desv., Hk. Bk., Syn. Fil., 384; Acrostichum tartareum, Cav., (oldest name); — 

 var. ochracea; G. ochracea, Pr., Rel. Haenk., I, 17; G. tartarea, Desv., var. 

 ochracea, Hk. Bk., 1. c. 



Stipes tufted, firm, 15 — 30 c.M. long^ dark-chestnut-brown, scaly towards 

 the base. Fronds 50 — 60 c.M. long, 15 — 30 c.M. broad, deltoid-oblong, 2-pin- 

 natifid. Pinnae lanceolate, the lowest the largest, sometimes sharply deflexed. 

 Secondary segments oblong, obtuse, entire, united, or the lower free, whether or 

 not toothed. Texture subcoriaceous; under surface powdery ; powder dense, white. 



War. ochracea: Segments very regular; powder bright-yellow. 



In cultivation. — Orig. loc.: Trop. America. 



* (2) C calomelanos, VHd., C. Chr., Ind. Fil.f Gymnogramme 

 calomelanos, Klf., Rac, Flor. Btz., I, 69; Hk., Gard. Ferns, tab. L; Ban. &flk. 

 Gen. Fil., tab. XXXVII; G. Boerlageana, Christ, MS. in Herb. Bog.; Neurogram- 

 me colomelanos, Diels, in Engl, k Prantl, Nat. Pfl.Fam., 1% 264; Acrostichum 

 calomelanos, L., (oldest name); — var. chrysophylla ; G. chrysophylla, Klf. 

 Enum. Fil., 74; G. calomelanos, Klf., var, chrysophylla, Hk. Bk., Syn. Fil., 385. 



Rhizome short, oblique or erect, the scales brown, lanceolate. Stipes 

 tufted, firm, angular, 5 — 50 c.M. long, black or brown and polished like the 

 rachis. Fronds 10—90 c.M. long, 5 — 30 c.M. broad, deltoid-oblong or lan- 

 ceolate-triangular, 3-pinatifid. Pinnae close, linear-lanceolate, the lowest mostly 

 the largest, to 2 — 5 c.M. broad, stalked, the apex pinnatifid. Lower pinnulae 

 lanceolate or deltoid-oblong, the lowest the largest, short-stalked, or sessile with 

 a narrowed base, often deeply pinnatifid into oblong or deltoid lobes; lobes 

 entire or broadly toothed to serrate, the lowest anterior one often the largest. 



