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MAXON — STUDIES OF TROPICAL AMEHICAN FEENS. 487 



The following name, given by Professor Underwood and llie writer 

 some time ago to a large series of the Pteris angmtJfoUa of Swartz, 

 collected in Jamaica, is here proposed: 



Ananthacorus Underw. & Maxon, gen. nov.** 



Rhizome chaffy, creeping; ironds contignous, oxstipitate, simple, Ihiear, en- 

 tire, eostato, the costa concealed; veins of nnforni ranlv, all joined in hexagonal 

 (less commonly pentagonal) elongate areolen in ?* or 4 series on each side of 

 and parallel to the costa, without free veins; sori slightly impressed, nou-indn- 

 siate, in a continuous or suhcontinuous line at the outer edge of the ultimate 

 series of areoles, distant 1.0 to 1,5 unn, from the margin; paraphyses spatulate, 



flaccid. 



Type, Pteris angitstifoJia Sw. Monotypic. 



Ananthacorus angustifolius (Sw,) Underw, & IVIaxon. 

 Pteris angnstifoUa Sw. Prod. 12i). 17S8. 

 Taenitis angust'tfoJia Spreng. Syst. Veg. 4: 42, 1827, 

 Ptcropsis angtistifoUa Desv. Mem, Soc. Linn, Paris 6: 218. 1827. 

 Vittaria angustifoUa Baker, in Mart. PL Pras. 1'; 544, 1870. 

 The following specimens are in the U. S, ^'ationaI Herbarium: 



Jamaica: Mansfield and adjoining properties near Path, altitude r>00 to 

 500 meters, on tree trunks of humid forested slopes, Maxon 17^4, 1^U5» 

 2392, 2423, 2431, 2446, Vicinity of Troy, altitude GOO to G(JO meters, 

 Maxon 2858. Above Moore Town, altitude 450 meters, CJate 272. Xear 

 Williamsfield, FrcdhoJm 3352, Cuna Cuna Pass, Frcdhohn 3210 (as 



Taenitis htnccolata). 



Cuba: Mountains north of San r»iego de los Banos, Province of Pinar del 

 Rio, on forest trees, Palmer tG Rilcij 4S5, 513, 562, .Monte Verde, Yateras, 

 Province of Oriente, altitude 575 meters, on trunk of palm in forest, 

 Maxon 4289; in the same vicinity, Wright 078. '' I\)sesion de Stark," 

 near Jaguey, Ynteras, Province of Oriente, on tree trunks, altitude 450 

 to 525 meters, Maxon 4445. Forested slopes of the Finca Las (Jracias, 

 Yateras, Province of Oriente, on trunk of manaca palm, altitude about 

 500 meters, Maxon 44G5, Alto Cedro, Undcnvood rf Farle 1554. 



Santo Domcnoo : Wright, Parry, tC BrummeU 2A. 



Grenada: Elliott G8 (as Vittaria remoia, det J. G, Baker). 



Trinidad: Fendler IIG. 



Mexico: District of Cordoba, State of Vera Cruz, Finck IIG. 



Guatemala: Cubilquitz, Alta Verapaz, altitude 350 meters, von TUrck- 

 helm ('/. D. -S. 8038). Banks of the Rio Polochic, below Panzos, on trunk 

 of palm, Maxon d- Hay 3007. 



Panama: Ilaycs 10, 



CoLOMiiiA; La Esmerelda, near Jamundf, Cauca Valley, altitude ],1(X) 



meters, Pitticr 954. 

 Frfncii Guiana: Near Cayenne, on tree trunks, Lepricur. 10G, 



Brazil; Matto Grosso, Lindman A. 3453. 

 The relationship of Ananthacorus is with Vittaria, from which it differs 

 radically in its type of venation which is strictly areolate without lateral 

 veins. The details of venation are shown by Presl (Tent. Pterid. pi 10. /. 5,), 

 by John Smith (Hist. Fil. ph 10. /, C), and liy Hooker (Gen. Fil. pL 77. A.). 



»The name is composed of Greek a privative, di^eos, flower, and ciKopv^, in 

 modern use the sweet flag, the fronds resembling the leaves of that plant. 



