10 DIAND. — MO NOG. 



8. SALVIA. 



1. S. verhenaca {mild Engiisk Clary), leaves serrate sinuate, co- 

 rolla narrower than the calyx. LightJ'. p. 79. E. B. t. 154. 



Hah. Pastures and banks, rare. Salisbury crags, and bank entering 

 Kirkcaldy from Dysart, Light/. Burntisland and near Pettycur, 

 Edinb., Maugh. Fl. June. 11 . 



One or two feet high. Lower leaves petiolate, ovate, lobed or sinu- 

 ated and crenate rather than serrate ; upper ones sessile, more 

 acute, less lobed, but deeply serrated ; all rugose, veined. Brac- 

 teas two under each whorl, cordate, acute, entire, ciliated. Cal. 

 hairy, segments mucronate. Cor. small, purple, ringent. Upper Up 

 concave, compressed. Lower Up three-lobed, middle lobe large, 



9. LEMNA*. 



1. h. trisuha {Ivy-leaved Duchveed), fronds thin elliptico-lan- 

 ceolate caudate at one extremity at the other serrate, roots 

 solitary. Lightf. p. 537 . E.B. t.92G. 



Had. Clear stagnant waters, as in Duddingston Loch, Dr. Parsons 

 in Lighlf. Fl. June, Jvdy. O . 



Tlie most delicate of the genus. Fronds one-half to three-fourths of 

 an inch in length, pellucid at the margins, reticulated. The yoimg 

 fronds, which are continually produced from tlie lateral clefts in this, 

 as in all the following species, are of exactly the same shape as the 

 parent plant, and are again proliferous before they are detached. 

 A frond may thus be seen to be triply pinnate with its offspring. 



* A most singular genus, whose characters have not been at all accu- 

 rately defined by any authpr. I have been fortunate in meeting with two 

 species, L. trisulca and minor, in all stages of fructitication, a more complete 

 analysis of which than has yet been given I hope to publish soon in the FL 

 Loii'l. — All the species are aquatics, floating on the surface or sinking only 

 wlicn the seed is ripe, and the plant dying away. Fronds (for I cannot con- 

 sider the whole plant, from which spring the flowers, as a leaf) minute, ovate 

 or orbicular, compressed, foliaceous or thick and succulent ; from the centre 

 beneath throwing out one or more long slender roots, which are -terminated 

 by a sheath-like appendage, resembling the calyptra of a moss. The mar- 

 gins of the fronds at one extremity, on each side, have a cleft in which some- 

 times are produced one or more flattened, orbicular GemmcE (and this is their 

 common mode of increase), which there grow into perfect fronds, and then fall 

 away, or a single yZoicer consisting of an urccolate, membranaceous, mono- 

 phyllous perimitli, from a small opening in the top of which the stigma is 

 ])rotriided, and which bursts irregularly as the stamem become developed. 

 These are two in number (rareli/ wanting) Anthers of two rounded lobe«, 

 opening nearly vertically each into two valves. Gormen roundish, com- 

 pressed, carinated on one side, tapering into a style about its own length, 

 and terminated by a flattish ratiicr expanded stigma. Fruit a Utricle, trans- 

 versely ohlo:if^, comjjressed, emarginate at the top, on which is the short 

 persistent style. Sjed one, very hard, oval, lying horizontally in the Utricle, 

 and fixed by its lower side. Embryo oblong, monocotyledonous, hoi'izontal^ 

 central, sunouaded by a whilisb, fleshy albumen. 



