jBjt HORTUS JAMAICENSIS. ,s8? 



FERN, /ewc.V. PTERIS. 



Ci 24, OR. 2. Ciyptogamia filices. Nat. or. Filices. 

 This takes its name from a Greek word, signifying a wing, on account of its winged 

 ieaves. 



'G'Eif. CHAR. Fructifiration in an uninterrupted mai-ginal line ; involucre from the 

 margin of tiie frond turned in, uninterrupted, seperating on tiie inner side. 

 Thirteen species have been discovered in Jamaica. 



The, following hm6 simple fronds : 



I. AKGU.^TIFOLIA. SMAI.L-LEAVED. 



Fronds lanceolate-iinear, entire, erect, fruiting along the whole edge. Szi}^ 



2. r.INEATA. LINEAR. 



Fronds linear, quite entire, fruiting longitudinally. 



Tke following have pinnate fronds : 



3. GR.iNDirOLIA. GREAT-LEAVED. 



Erectum simplex, foliis oblongis marginatis et leniter undidatis.-^ 

 Browne, p. 105. Acrosticum 6. t 



Pinnas opposite, ovate-linear, acuminate, quite entire. ' 

 This plant is called, by Browne, an acrosticum, and he says it grows in the cooler 

 tnountiiins, and seemed to like a free, open, gra\elly soil, and seldom rises above three 

 feet and a half from the ground. He makes it the same plant as Sloane's, v. 1, p. 84, 

 N 41, acrosticum niarginatum, described under the articleybr<t_/i?r. 



4. LONGrrOLIA. LONG-LEAVEI>. 



Simplex, foliis impetiolatis longis angiistis uiiritis. Browne, p. 90. 



Pinnas lincar-repand, cordate at the base. 



This plant seldom rises above fourteen or sixteen inches, and is remarkable for its 

 jiarrow simple leaves, and undivided stalk. Browne. 



5. DENTICULATA. SAW-TOOTHED. 



Lower pinnas semi-pinnate, lanceolate, the barren ones toothlet-cillate, the 

 fertile ones quite entire. Sw^ 



6. VITTATA, FILLETED. 



Simplex assurgens, foliis lengionbus lanccolatis, petiolis brevibus.^ 

 Browne, p. 90. 



Pinnas linear, straight, rounded at the base. 

 This plant springs from a large firm root, and rises commonly to the height of twelve 

 r sixteen inciies, sometimes more ; it grows in moist, cool, shady, places, but^hrives 

 iaest in a rocky or gravelly soil. Browne. 



7. TRICHOMANOIDES. TRICHOMANES-LIKE. 



!rricho77ianes iiiajus pinyiis sinuatis siibtus nivcis, Sloane, v. I, p. 

 Pp SQ 



