LEA 
Apex tip, is the extremity in which the Leaf termi- 
nates ; Leaves in refpect to thefe are termed, 
A truncated Leaf ( Trnncatum ) is one whole fummit 
feems as though it were cut off by a (Irak line, in a 
tranfverfe direction. 
A bitten Leaf (. Pramorfum ) is one which is terminated 
by very blunt unequal cuts, fig. 31. 
A blunt Leaf (. Retufum ) is one whofe extremity is ter- 
minated by an obtufe fmus, rig. 32. 
A nicked Leaf ( Emarginatum j is one whofe extremity 
is a little notched, fig. 33. 
An obtufe Leaf (Obtufum) is one whofe point is ter- 
minated bluntly, or by a fegment of a circle, fig. 34. 
A iharp Leaf ( Acutum ) is one whofe point is termi- 
nated in an acute angle, fig. 35. 
An acuminated Leaf ( Acuminatum ) is one which is ter- 
minated by an awl-fhaped point, fig. 36. 
A pointed obtufe Leaf {Obtufum acumine) is one whofe 
upper part is rounded, but draws to an acute point, 
fig. 37. 
A claiper Leaf ( Cirrhofum ) is one which terminates 
with a tendril, fig. 38. as in Gloriofa, Flagellaria, &c. 
The margin of a Leaf is the outermoft boundary of { 
its fides, exclufive of its difk or middle, fo in refpedt J 
to their margin are, 
A fpinous Leaf ( Spinofum ) is one whofe edge or bor- | 
der ends with hard ftiffi prickles, fig. 39. 
An indented Leaf (. Dentatum ) is one whofe edge has 
horizontal points of the fame confidence with the Leaf, 
but are feparated from each other, fig. 40. 
A fawed Leaf ( Serratum ) is one whofe edges are 
Iharply notched like the teeth of a faw, which make 
acute angles bending toward the top, fig. 41. 
A backward fawed Leaf {Retrcrfo- [erratum) is one 
whofe ferratures or teeth, are bent toward the bale of 
the Leaf. 
A double fawed Leaf ( Duplicate- [erratum) is one whofe • 
edges are fawed with larger teeth, and the edges of 
thefe are again fawed in the fame manner. 
A notched Leaf ( Crenatum ) is one whofe edges are 
indented with angles, which neither turn toward the 
point nor bafe. When thefe indentings terminate 
obtufely, it is called obtufe crenated j when acutely, 
acute crenated; when the indentures are again in- 
dented, it is called double crenated {Duplicato-crena- 
tumf) fig. 42. 
A bowed or ferpentine Leaf ( Repandum ) is one whofe 
margin has feveral obtufe finufes which are inferibed 
’ with the fegments of circles, fig. 43. 
A cartilaginous or grifly Leaf ( Cartilagineum ) is one 
whofe edge is furnifhed with a firm cartilage of a dif- 
ferent fubftance with the Leaf, fig. 44. 
A ciliated Leaf ( Ciliatum ) is one whofe edge is fet 
with parallel hairs, fo as to referable the hairs of the 
eye-lid, fig. 45. 
A torn Leaf (. Laceratum ) is one whofe edges are cut 
into fegments of irregular fhapes. 
A gnawed Leaf (. Erofum ) is one which is finuated, and 
the finufes have their edges again indented with fmall 
obtufe finuations, fig. 46. 
A very entire Leaf {Integer riffiim) is one whofe margin 
is entirely free of all notches or indentures. 
The furface ( Superficies ) is the outfide, or what covers 
the difk of the Leaf, and refpe&s both the upper and 
under furface, fo are termed, 
A vifeous Leaf ( Viftidum ) has its fuperfices covered 
with a clammy moifture which is not fluid, but fbicky. 
A downy Leaf (‘ Tomentofum ) is one whofe furface is 
covered with a nap of interwoven hairs fo fhort and 
fine, that the eye does not diftinguifh them fingly, 
though the Leaf is evidently downy both to the fight 
and touch, fig, 47. 
A woolly Leaf ( Lanaium ) is one whofe furface is co- 
vered with a kind of woolly fubftance, like a fpider’s 
web, as in Salvia, Sideritis, &c. 
A hairy Leaf (. Pilofum ) has its furface furnifhed with 
long diftindt hairs, fig. 48. 
A rough or flinging Leaf ( Hifpidum ) is one whofe fur- 
face is covered with rigid hairs, which either fling or 
prick on being touched, fig. 49. 
LEA - ■ 
A rough Leaf ( Scabrum ) is one whofe furface has on 
it feveral little irregular prominences. 
A prickly Leaf (. Amleatim ) is one whofe furface is 
covered with ferong fharp points or thorns, which ad - - 
here lightly to the furface. 
A ftreaked or channelled Leaf {Striatum) is when its 
furface has a number of parallel longitudinal furrows* 
A pimpled Leaf ( Papillofum ) is one whofe furface has 
many little round ifh protuberances like nipples or 
bladders, fig. 50. 
A pundiuated Leaf ( Punffatnm ) is one whofe furface 
has many hollow points difperfed over it. 
A bright or fplehdent Leaf ( Nitidum ) is one whofe 
furface is fmooth and fnining, as if poliftied by art. 
A plaited Leaf (. Plicatum ) is one which has feveral an- 
gular rifings and hollow's towards its borders,^as if 
folded up, as in Alchimilla, fig. 51. 
A waved Leaf ( Undulatum ) is one whofe furface to- 
ward the edges riles and falls convexly like the waves 
of the fea. 
A curled Leaf {Crifpum) is when the circumference 
of the Leaf grows larger than the difk will admit, fo 
that the whole furface is railed in waves, fig. 52. 
A rough leaf {Rugofum) is one whofe veins are con- 
tracted and funk below the difk, and the intermediate 
flefhy parts rife in irregular forms, fo as to appear 
rough, fig. 53. 
A hollow or concave Leaf (< Concavum ) is one whofe 
margin contrails, fo is lefs than the middle, and is 
funk down or hollowed. 
A veined Leaf ( Venofum ) is one whofe veins are 
branched, and appear to the naked eye. 
A convex Leaf ( Convexum ) is one whofe middle rifes 
into a protuberant form. 
A nervous Leaf { Nervofum ) is when the veins are ex- 
tended lengthways from the bafe toward the fummit 
without branching, fig. 54. 
A coloured Leaf ( Color atum ) is one which has other 
colours than green. 
A fmooth Leaf {Glabrum) is one whofe furface is 
fmooth, without any inequalities. 
The fubftance of a Leaf refpects the conditions of its 
fides, in this refped Leaves are, 
A taper Leaf {Teres) is one of a thick fubftance, and 
for the moft part of a cylindrical form. 
A half taper Leaf {Semicylindraceum) is one which is 
of a cylindrical form, flatted on one fide. 
A hollow Leaf (' Tubulofum ) is one which is hollow like 
a pipe, as thole of the Onion. 
A flelhy Leaf {Carnofum) is one that is lucculent or 
full of pulp. 
A comprefled Leaf {Comprejfum) is one whofe margi- 
nal fides are prefled, fo that the fubftance of the Leaf 
is larger than the difk. 
A plane Leaf ( Planum ) is one whofe furfaces are every 
where parallel. 
A gibbous Leaf {Gibbum) is one which is convex, on 
both fides, the middle being fuller of pulp. 
A deprefied Leaf {Deprejfum) is one whofe dilk is more 
deprefied than the fides. 
A guttered Leaf {Canaliculatum) is one which has a 
longitudinal deep furrow running through the middle 
of the Leaf, and is almoft cylindrical, "fig. 55. 
A double-faced Leaf {Ancipites) is one whofe difk is 
convex, and has two prominent longitudinal angles. 
A fword-fhaped Leaf ( Enjiforme ) is one with thin 
edges, with a prominent rib running from the bafe to 
the point in the middle. 
A faulchion or feymiter-fhaped Leaf (Acinaciforme) is 
one which is flefhy and comprefled, with one of its 
edges convex and narrow, the other .thick and ftrait, 
fig. 56. 
An ax-fhaped Leaf {Dohbriforme) is one which is 
roundifh, obtufe, and comprefled, gibbous on the 
outfide, the infide fharp-edged and taper below, 
%• 57 - 
A tongue-fhaped Leaf {Linguiforme) is linear, flefhy, 
and obtufe, convex on the under fide, and has often 
cartilaginous edges, fig. 58. 
& 
5UQ 
A two- 
