6 



may be used in the same way, or for sponging the leaves of plants. For mealy-bug, and scale insects 

 kerosine is probably the best remedy, used in the proportion of a small wineglassful of kerosine oil to four 

 gallons of water for syringing or spraying the plants iiffectcd, but the solution must be kept thoroughly 

 mixed, by constant agitation, whilst being used These remedies are best used vn a dull evening, and the 

 p'ants should be well syringed with clear water the following morning. A most excellent remedy for 

 destroying insects pests, called "nicotine soap" is supplied by J^iiglish nurserymen, and dealeis in garden 

 requitites. It is sold in jars at Is 6d. and 3s each, and printed directions for using the preparation acc .m- 

 pany each jar. 



For further information than that given in these notes the following may be consulted : — Nicholson's 

 ♦'Dictionary of Gardening," and the "Gardeners' Assistant." 



W. Harris. 



FERNS: SYNOPTICAL LIST.— XXII. 



Synoptical List, irith descriptions, of the Ferns and Fern- Allies of Jamaica, by G. S. Jenman, Superin' 

 tendent, Botanical Gardens, Demerara, (continued from Bulletin No j^6.) 



8. Asplenium dentatum, Linn.— Rootstock very small, upright ; stipites tufted, 2-4 in, 1. slender' 

 green-gray, naked or with few minute scales at the base; rachis conform ; fronds nuked, gray-green> 

 herbaceous,' 2-4 in. 1. ^-f in. w., pinnate, fertile erect and larger, barren prostrate ; pinnae 6 12 to a side, 

 opposite or alternate, apart or subdistant, the lower most remote and not or little reduced, in. 1. 

 less usually in breadth, ovate-rhoraboid the outer part rounded and dentate, the inner cuneate, or 

 obHquely-cuneate, and plain-edged, the inferior ones slightly stipitate, terminal segment blunt, lobate 

 and ii ciso-dentate ; veins forked, pinnate — flabellate ; sori copious, very oblique, 2-3 li. 1. not quite 

 reaching the margins ; involucres pale, narrow. —Plum. t. 101, c. (exaggerated) ; Hook. & Grev. Icon. 

 Fil. t. 72 ; Eat. Fer. N. Am. pi. 80. 



Common throughout the island on walls and wet and dry rocks, first gathered by Sloane, well 

 marked by its small size, few pinna3 and distinct barren and fertile fronds, the former being much 

 smaller and very short stipites. There are two forms, the second longer, mure tapering, with 

 closer, smaller, less dentate or quite even and more numerous set^ments. 



9. A. jamaicenae, Jenra. — Rootstock upright, fibrous, slightly scaly and toraentose ; stipites 



grgy green above the base; tufted, 3-6 in. 1. ; rachis similar ; fronds pinnate, herbaceous, grey-green 



glabrous, fertile central, erect, 4-7 in. 1. lJ-2 in. w., barren external, spreading, much smaller, pinnae 

 apart, the terminal roundly lobed, 6 10 to a side, spreading, rhoinboidal-obl ong, broadly rounded, sub- 

 dentate, shortly pedicillate, the upper base expanded and somewhat auricled, the under cut away \ \ 

 the inferior margin ; veins pinnate, forked, the inferior flabellat.e ; aori 1^-3 li. 1. oblique, not reaching 

 the margin; involucres pale or silvery, flat, narrow.— Jour. Bot. Sept. 1886. 



Infrequent or occasionally common from 500 - 6,000 ft. alt. throughout much of the Inland, 

 growing on rocks ; gathered by Hart at the top of the John Crow Peak (about 6,000 ft. alt.), by Sher- 

 ring in St. Ann (2.000 ft. under and above) and myself in various lower situations in the eastern 

 parishes. Intermediate between the last, of which it has the habit, and the European A. mariiium, 

 Linn * sometimes there is a distinctly separated segment on the upper and occasionally under side of 

 the inferior pinnce, with pinnate veins and double series of sori, as in the undivided pinnae. The 

 rachis is rather flattened in the upper part and often somewhat flexuose. It has been gathered also 

 in Guatemala. 



10. A ubscissum, Willd. — Rootstock sm 11, fibrous, erect or oblique; stipites tufted, 3-5 in. 1. 

 grey-green, naked ; rachis conform slightly margined and sub-flexuose above ; fronds pinnate, 3 - 6 in. 

 1. 2 - 3i in w., lanceolate or deltoid — lanceolate, thin naked, grey-green, the base truncate; pinna» 

 few, spreading I-2in. 1. ^in. w., the lower, which are not reduced, acute or acuminate, the upper 

 obtuse or rounded, passing gradually into the roundly-lobed, acuminate terminal division, which is 

 l-2in. 1., obliquely-truncate and the under side shortly cut-away, serrate or bi-serrateon b )th margins, 

 veins pinnate, branches forked, oblique; sori on the superior branch. l|-3li. I., falling about equally 

 short of both margin and midrib ; involucres narrow, pale. — Plum. Fil. t. 74 A finniun. Kze. Hook. 

 Sp. Fil. t. 174 ; E^at. Fer. N. Am. PI. 80. 



Common among the lower hills of the eastern parishes on rocks and b)ulders near rivers and in 

 damp woods ; very near cuUrifolium, of which it might be regarded as a variety, shorter, with fewer 

 pinnae and of thinner texture. It spreads by means of viviparous buds pioduced on the wide-extend- 

 inf', more or less exposed, roots, as in A auritum. 



° 11. jHpleiiiiim cuUrifolium, Linn. — Stipites tufted, erect from a small slightly scaly upright rootstock, 

 4-10 in. 1 , grcy-gr en, naked channelled; rachis similar; fronds pinnate grey-green, chartaceous, naked, 

 6-10 in. 1., 3 5 in w. broadest as a rule at the base, with an acuminate lobed terminal segment, \-2\ in. 1. ; 

 pinuiX! 6-1 > to a side, spreading apart or subdistant ; acuminate, upper base usually truncate, under sho rtly 

 cutaway; or the lower ones cuneate, serrate or biserrate on both margins, the teeth appressed an evanescent 

 in the outer i)art , veins pinnate, forked, oblique, sori on the outer branch, 2-4 li. 1. more distant from 

 m irgins than midrib, involucres narrow, pale. 



Common on rocks near rivers and in damp woods and ravines among tlu; lower hills up to 1,000 ft. 

 alt., reappearing tni the banks of streams at 4,000-5,000 ft. alt , differing from the preceding by its larger 

 size and more numerous pinnae. The luperior base is in some cases slightly exi)anded, but not at all 

 auricled and the sori isometimes appear as if d uble there, but are not really so, being on separate but 

 closely CO tiguous veinlets. A small state, ai)parcntly of either this or the preceding, only 2-3 in. hig^ 



*A, marinnm, Liiin. has been over a century mistakenly ascriberl to .Jaiiiaic i owing to Linn.eus quoting tab. 33, fig. 

 1 of Sloano'H Hmtory as a type in founding the species. On page 5(5 of Sloane's folio herbarium in the British Museum 

 is the upecimen from which his figure was taken, and tliis is a small state of A. auritum, Swartz. 



