FiLicEs. (ferxs.) 635 



1. D. punctilobula, Kunze. Fronds delicate, slightly glandular pubes- 

 cent, as is the rachis, lanceolate-acuminate, 2 -Spinuate; pinnce numerous; 

 pinnules oblong-ovate, closely placed, obtuse, pinnately incised or pinuatifid ; 

 the divisions obtusely serrate, each one bearing a minute fruit-dot at the 

 upper margin. — Moist shady woods in the upper districts. — Rootstock 

 slender, extensively creeping. Fronds 2° -3° high, when crushed returning 

 a pleasant odor. 



22. TRICHOMANES, L. 



Sporangia with a transverse entire ring, arranged on the lower part of a 

 cylindrical, filiform, often elongated receptacle : involucres marginal, funnel- 

 shaped, or bell-shaped, entire or two-lipped at the mouth. Fronds delicate, 

 very thin and pellucid. 



1. T. Petersii, Gray. Very small, with entangled filiform tomentose 

 rootstocks ; fronds oblong-lanceolate or obovate, entire or variously pinuatifid, 

 narrowed into a slender stijje nearly as long as the frond, the younger ones 

 with a few black forked hairs along the margin ; veins forked, pinnate from 

 the midrib ; involucre solitary, terminal, funnel-shaped, the mouth expanded 

 and slightly two-lipped, receptacle included. — On the face of a sandstone 

 rock, sprinkled from a waterfall, Hancock Co., Alabama (T. M. Peters). 

 Also among some Mosses sent from Fensacola, Florida. — Fronds less than an 

 inch high. 



2. T. radicans, Swartz 1 Fronds pellucid, with a loose roundisli areola- 

 tion, on a sliort broadly winged stipe, lanceolate or ovate-lanceolate, bipinnati- 

 fid ; pinna; ovate or deltoid-ovate, obtuse, the upper side of the base parallel 

 and appressed to the winged rachis, the lower side cuneate ; divisions toothed 

 or divided into linear lobes ; involucres terminal on short lobes of the pinnte- 

 tubular-funnel-shaped, margined, at the mouth truncate and slightly two- 

 lipped ; receptacle exserted a little or very much. — Mountains, Alabama to 

 East Tennessee. — Rootstock slender, creeping, tomentose with black hairs. 

 Fronds 4'- 8' high, 12"- 18" wide. 



23. LYGODIUM, Swartz. Clijibixg Ferx. 



Sporangia beneath ovate hood-shaped imbricated indusia, in a double row 

 on narrow divisions of the fronds, attached laterally, ovate, with a many- 

 rayed apical ring. Fronds elongated, climbing, the branches usually in pairs 

 with a short common footstalk. 



1. Ij. palmatum, Swartz. Fronds slender, pinuie deeply cordate at the 

 base, palmately 4-7-lobed, the lobes oblong, obtuse, entire ; the upper pinna; 

 decompound and bearing the fruit on the ver\- narrow segments. — Lowsliady 

 woods, Florida, and northward ; not common. — Rootstock very slender, creep- 

 ing. Fronds 2° -5*^ high, climbing on weeds and bushes. 



24. ANEIMIA, Swartz. 



Sporangia ovate, many-rayed at the apex, attached by the base in a double 

 row to the narrow one-sided paniculate divisions of the two lower branches of 

 the frond, or on separate fronds. Indusiuni none. Fronds erect, commonly 

 three-branched, the middle branch sterile and 1 -3 pinnate. 



