OF THE GENUS SYMPHYTUM. 
KEY TO THE SPECIES. 
Stem branched ; root fusiform or with fusiform branches; 
flowers generally numerous,,......... MEME .. 
Stem simple or nearly so; root more ог les: creeping 
with tuberous expansions; flowers generally few, 
yellowish ........‚....... НА T 
Division I. RAMOSA. 
Calyx divided to or below the middle .............. 
Calyx not divided to the middle................. .. 
. Leaves decurrent on the stem from node to node, or 
onlv on the dilated and clasping petiole, but then 
the plant is glabrescent and scabrid ; nutlets smooth. 
Leaves not decurrent; nutlets generally granulated. 
Subdivision i, SEGMENTATA. 
Section 1. Officinalia. 
Plant more or less densely pilose-hispid ; lower leaves 
ovate-lanceolate, upper oblong-lanceolate entirely 
decurrent; flowers white or yellowish (a. ochro- 
leucum, DC.), or dull purple (b. purpureum, Pers.) . . 
Plant thinly hispid, glabrescent or asperous with minute 
prickles and their tubercular bases; leaves narrowly 
lanceolate; corolla red-purple or violet..... ТРГ 
Upper leaves partially decurrent, subhispid; calyx 
рарегшоицѕ ................ ОНОН 
Upper leaves not “de current with dilated and clasping 
petioles, or partially decurrent (var. pseudopterum, 
Borb.), the lower narrow; plant glabrous except for 
small prickle-like hairs and their tubercular bases ; 
— 
wa 
S. officinale, Linn. 
4. 
officinale var. lanceolatum, 
ceu 
| Мел. 
calyx-segments ciliate with small prickles ........ 2. S. uliginosum, Kern. 
Corolla blue or purple ; plant often tall, stout ........ 
Corolla white, or, if blue, smaller ; plant more slender. 
Section 2. Czrulea. 
. Calyx large with acute segments; corolla rose-colour 
then clear blue; upper leaves sessile, uncinately 
adnexed to the stem.......... aca eee eens e 4 
Calyx with obtuse segments ..... TM 
. Calyx small; corolla blue, 5-4 times longer than the 
calyx: upper leaves subpetiolate ,.......... ees X. 
Calyx large; corolla purple (or blue?), 2, rarely 4 
times as long as the calyx ...... TOPPED . 
Leaves ovate with rounded base, the middle cauline 
petiolate; stem with long, slender hairs .......... б 
Leaves oblong-elliptic, the middle and upper cauline 
amplexicaul; stem with short, stout, claw -like 
prickles ...................................... 6б 
6. 
9. 
. S. peregrinum, Ledeb. 
- 
4. 
S. asperum, Lepech. 
) 
5, 
. 5. sepulerale, Boiss. < Bal. 
S. armeniacum, Bucknall. 
LI 
