JAMAICA FERNS. 259 



attenuated, i to ^ inch wide at the base ; rachis narrowly winged 

 above the free base. No. 85, Herb. Kew, 1878. 



Adiantiun macyojyhyllum, Sw., var. hipinnatum, Baker, MSS. : 

 stipes long ; pinnae more numerous than in the type and smaller, 

 base of the frond bipinnate ; pinnules oblong. No. 76, Herb. 

 Kew, 1878: 



Adiantum cubense, Hk., var. nanuin, Jenman : small, delicate, 

 3 to 6 inches high ; lamina 3 inches long ; segments 4 to 10, with 

 a larger deltoid terminal one, casually bipinnate on the left side at 

 the base. No. 75, Herb. Kew, 1878. — The type proves, in its 

 ultimate state, to be a large, amply-developed, tripinnate plant ; 

 and very fragrant in di-ying. 



Adiantum ohtusum, Desv. 



A. hisjndulum, Sw. The discovery of this plant in Jamaica 

 tends to confirm the doubted Peruvian habitat, referred to in 

 Hk. Sp. Fil., vol. ii., p. 31. 



Chfiilanthes jxiiqjercula, Mett. Previously known only from Cuba. 



NothocMcBna trichomanoides, E. Br., var. suhnuda, Jenman : 

 similar to the type, but without the coating of rusty tomentum 

 beneath. 



Blechniim lomjifolium, H. B. K. 



B. serrulatum, Eich. 

 Lomaria Plumieri, Desv. 

 L. Boryana, Willd. 

 Asplenium rutaceum, Mett. 

 A. auricidatitm, Sw. 



A. hastatum, lO. 



A. auritum, Sw., var. macilentum, Kze. 



A. caudatum, Forst. ? 



A. Wilsoni, Baker. 



258."^' Asplenium altissimum, Jenman, n. sp. — Caudex stout, 

 erect or decumbent, beset with the persistent bases of the past 

 stipites ; stipites csespitose, few, suberect, 18 to 24 inches long, dark 

 coloured, not channelled, puberulous and warty with dense raised 

 points, dotted below with largish, membranous scales ; fronds 

 spreading, ovate, 2 to 4 feet long, 16 to 24 inches wide ; lowest 

 pinnae little or not reduced, bipinnate ; pinnae spreading, 12 to 18 

 inches long, 5 to 8 inches wide, often bearing bulbils in the axils 

 of the ujDper ones ; pinnules subpetiolate, 3 to 4 inches long, 

 acuminate, deej^ly pinnatifid, the lowest pair reduced; segments 

 i to f inch long, 2 to 3 lines wide, oblong, the apices rounded, 

 entire, toothed, or lobed half-way to the midrib ; texture firm ; 

 under surface puberulous; the cost» and cos-tulae slightly scaly; 

 upper glabrous, the costulae channelled, with accessory sharj)- 

 edged margins ; veins pinnate, simple or forked, reaching the 

 edge ; sori short, close to the midrib, the inferior occasionally 

 double ; involucre tumid, membranous, naked ; colour above duU 

 dark green, beneath pale, lurid. No. 64, Herb. Kew, 1878. 

 Asplenium /«'«?/6', var.. Baker MSS. — Intermediate between radicajis 

 and Mans, with the cutting of the former and the sori and 

 involucres of the latter. 



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