42 



water as possible, and then hung up on lines prepared on the spot, to 

 dry in the sun". — (Royle in Watts Dictionary.) 



The price paid to the cultivator varies from 4 to 5 shillings per cwt. 



Jute is obtained from Corchorus olitorius near Calcutta, and Cor- 

 chorus capsular is in other parts of Bengal. 



The young shoots oiCorchorus olitorius are used throughout India as 

 a pot-herb,and for the same purpose as " Jews Mallow." This species 

 is naturalised in Jamaica. 



The native species are C. siliquosus, C. cestuans, and C. hirsutus ; the 

 first named being commonly called " Broom-weed" from the use to 

 which it is put. 



FERNS : SYNOPTICAL LIST— XLIF. 



Synoptical List, with descriptions, of the Ferns and Fern- Allies of Ja- 

 maica. By G. S. Jenman, Superintendent Botanical Garden, 

 Demerara. 



Series II. Exinvolucratse. 



(Sori devoid of involucres.) 

 Tribe XI. Polypodieaa. 



Sori round or oval, rarely linear or decumbent and confluent, usually 

 smaller than a pin's head but often larger ; receptacles the same shape, 

 on the back, or terminal on the veins : sporangia stipitate, compressed 

 arched by an incomplete jointed vertical band, which splits at length 

 transversely ; involucres none ; veins free, united or variously anasto- 

 mosing, with or without free included branches in the meshes, fronds 

 few or many, varying from simple-entire to decompound ; stipites arti- 

 culated or not, paced or tufted on a creeping or upright rootstock, the 

 variations or diversity in which are as wide as in the character of the fronds. 



A very extensive group, comprising in its members great variety of 

 habit and form, but which as here regarded, constitutes but a single 

 composite genus, distinguished by the naked exposed, usually isolated 

 roundish sori, in all cases devoid in any degree, of an involucre. 



Gexus XXX. Polypodium Linn. 

 Only genus see characters of Tribe. 



The largest genus of all in the order, spread over the tropical and 

 temperate zones of both hemispheres, most abundant at high eleva- 

 tions within the equatorial belt ; the majority epiphytal, affecting the 

 shady moist situations, of the cool higher mountain regions. 



I. Veins free. 



Fronds entire (or furcate) 



1. P. Fawcettii, Baker. 



2. P. dendricolum. Jenm. 



3. P. gramineum, Swartz. 



4. P. nigro-limbatum, Jenm. 



5. P. marginellum, Swartz. 

 Fronds serrulate or lobate in the lower half, entire or serrato-entire 



in the upper. 



6. P. serrulatum, Mett. 



7. P. a Jamesonii, Jenm. 



8. P. myosurioides, Swartz. 



