I! O T A N Y. 



41 



i Top.. 



Itipulej. 



103. Rooting (radicaii*}, when tlic leaf strikes 

 roots. * 



Am-. XXXII. The leaves of t!ic Musci fnvhltixi 

 nn- ;ill membranaceoua and simple, and with one cx- 

 ceptii 



1 . Piliterous ( jillifcnini), having a hair at the 

 Poh/trichum pilifl-rum. 



ART. XXXIII. MI-CELLANEOUS PARTS OF THE 

 LEAF. 



1. Lobe (lobu.i), the segment of a leaf which is 

 round at the apex, as in the Acer. 



2. Segment (lacinia), the uneven segment of a leaf 

 with an anguhir pon.t. 



3. Leafi-t (foli ilnm], the small leaves that com- 

 pose a digitate, quinate, &c. loaf. 



The leaf of a. hi-pinnatc leaf, (pinna). 

 Lcafet of ditto, (pinnuln). 

 Two-paired pinnated, (pinnatum tiijvguxi). 

 Angle (angului), the lacinia or segment. 



ART. XXXIV. FROND (fros\, the leaf of the 

 Palm tribe, of Filiccs, Musci fiepatici, and Alga. 

 Palms have a simple stem crowned with leaves. 



1. Fan-shaped (jlabelliformis), when a number of 

 leaves are spread out in a circle at the apex of the stipe. 



2. Peltate (pt'//afn), when the foliaceous substance 

 at the npex or the stipe is closed and entire. 



S. Pinnate (pinnata), resembling a pinnated leaf. 



The Filiccs, and those plants allied to them, have 

 all the usual characters of leaves, with some others. 



1. Pinnated with confluent foliola (pinnata pinnis 

 COttflueniibus), pinnated and united at the base. 



L'. Doubly pinnated (KpmnatUlda). 



3. Barren (slcnlis), when it bears neither flowers 

 nor fruit, as in Bleclitium borenlc. 



N. B. The Musri hepatici have no particular cha- 

 racters of their fronds. 



Algce have their stipes and fronds running into each 

 other. 



1. Foliaceous (foliacea), when the frond is divided 

 into sections or folds, as in Lic/ien saxatilis. 



2. Gelatinous (gelatinosa), when it is transparent, 

 resembling jelly, as in Lichen crispus. 



3. Leathery (coriacea). Pellitiea canina. 



4. Imbricated (imbricata). Lichen parietiinis. 



5. Umbilicated (niMlicata), when the frond is fix- 

 ed to the body, on which it grows, by a single cord, 

 arising out of its under surface. 



6. Orbicular (orbiculaia, stellaris). Lichen stellaris. 



7. Crustaceous (cntsiaceu). Lichen siitifuscus. 



8. Pulverulent (piiheriilenta). Lcpra. 



9- Filamentous (Ji/anietitnsa). Lichen julatus. 



10. Simple (timpltciffima). Fncus saccharimts. 



11. Fruticose (jrttticosa). Lichen uiiicalis. 



12. Cupbearing (pyxidata ; scyphifera). Lichen 

 pyxidatitt. 



AHT. XXXV. PROPS (fulcra), all those parts 

 which differ from the root, stem, leaves, and flower, 

 but serve to support plants. The particulars are to 

 be found in the following articles. 



AUT. XXXVI. STIPULES (i/T/wte), are small leaves 



that appear on the stem, in place of the Foot-stalks 

 of leaves. Fig. 21, 23, 25. Plate Ixvii. Fig. 21, 23, 

 2:>, Plate Ixviii. 



Double (nr;/flftr), when two are opposite. 



1. Lateral (laleralcs), when they stand at the ori- 

 gin of the footstalk. 



2. Extrafoliaceoiu (cxlritfoliacea:), when below 

 the origin of the footstalk. 



3. Intrafoliaceous (intrafoliacece), above the origia 

 of the petiolus. 



4. Caducous (endues), when they fall off soon af- 

 ter their evolution. 



5. Deciduous (decidiuc), when they fall off a short 

 time before the leaves. 



6. Abiding (}>ersistentes), when they wither and 

 fall with the leaves, or soon after them. 



ART. XXXVII. RAMENT (ramentitni), a small 

 leaflet of a brownish colour, which appear on all trees 

 when the buds open, and fall off soon after. It is 

 placed in the angles of the footstalk. 



ART. XXXVIII. FLORAL LEAVES (bractece), the 

 leaves that are interposed between the flowers. Fig. 

 36. Plate Ixvii. 



ART. XXXIX. SHEATH (vagina), is the prolon- 

 gation of a leaf, which rolls itself around the stem, 

 and forms a cylinder ; as in all the grasses. 



ART. XL. SFATHE (spatha), an oblong leaf which 

 envelopes the stem, and protects the flowers before 

 they blow. It is common to palms, to most lilies, 

 and arums. Fig. 34, 35. Plate Ixix. 



1. Univalve (iniivalvis). Fig. 35. Plate Ixix. 



2. Vague (vaga), when, besides one large common 

 vagina, there are smaller ones for each particular di- 

 vision of the flower-stem. 



3. Withering (marcetcefu), when it withers at 

 flowering. 



4. Permanent (persisting), when it remains un- 

 changed until the fruit ripens. 



ART. XLI. ROLL (ochrea), a leafy body which 

 surrounds the branches of the flower-stalk hi some 

 grasses, as in the genus Ci/pcn/s. 



1. Foliaceous (jbliacea), when it ends on a subu- 

 late leaf. 



ART. XLII. BOTTLE (ascidnm), a cylindrical, 

 hollow, foliaceous body, often furnished with a cover, 

 which opens occasionally, and is generally filled with 

 pure water. It is either sessile or petiolate. In Ne- 

 penthes diilil/atoria. 



ART. XLIII. BLADDER (amptiVa), a round, hoi- 

 low, closed body, found at the roots of some water- 

 plants. Their form in some fuci is very singular. 



ART. XLIV. ST.RAP (ligula), a small membra- 

 nous leafet at the margin of the vagina, and at the 

 base of the leaf. 



1. Truncated (fnincata), when it terminates in a 

 transverse line. 



2. Acuminated (acuminala), when it has a long 

 projecting point. 



3. Decurrent (dectirrens), when small and running 

 down the inside of the vagina. 



Rameat. 



Floral 

 leaves. 



Sheaib. 



Spathe. 



Rolf. 

 Bottte. 



Bladder; 

 Strap. 



When a leaf does not agree with any of the preceding descriptions, the preposition sub is prefixed to the word; so that 

 we have suborate, tabcordate, &c. When the leaf agrees in general form \\ith the descriptions, but appears to be reverted, 

 that is, the base is in the position of the apex, and rz'ce vena, the preposition vb is prefixed; whence we have obovate, oicr- 

 tlate, &.c. 

 VOL. IV. PART Ii F 



