4 ARKIV FOR BOTANIK. BAND 10. w:o 6. 
yngre individ. Ratt karaktäristiskt for denna art är lobernas 
ofta alternerande ställning. 
Gottland: Visby vid gamla hamnen (H. Dr., TH. LANGE). 
2. T. retroversum n. sp. 
Folia sat obscure viridia, glabra, extima florendi tempore 
ut plurimum emarcida, + elliptica—obovato-oblonga, + re- 
gulariter dentibus retroversis dentata v. parce et late lobulata, 
dentibus lobulisve in superiore margine + convexis, apice 
brevi— longiore, acuto, integro, exteriora et intermedia lanceolata 
—anguste oblongo-lanceolata, lobis latis, inferioribus + di- 
stantibus, interlobiis brevibus + subulato-dentatis sejunctis, 
superioribus v. interdum omnibus approximatis, brevibus— 
magis elongatis, e basi lata—latissima plerumque valde hamato- 
reflexis, inferioribus interdum apicibus 4- porrigentibus, acutis 
— acutissimis, margine superiore in lobis inferioribus minus 
convexo, 4 longe et anguste subulato-dentato, in lobis superio- 
ribus magis et sepe valde convexo parce— sparsim v. in fol. in- 
terioribus crebre subulato-dentato, lobo terminali + triangu- 
lari-hastato margine + recto, sat elongato, acuto, integro v. 
inferne parce subulato-dentato lobulis lateralibus acutis, intima 
in lobis omnibus crebrius et longius angustissime subulato- 
dentata, lobo terminli sagittato, magno, ad basin v. usque ad 
medium v. etiam supra medium inzequaliter et anguste subulato- 
dentato, petiolis angustis, + obscure violaceis, nervo mediano 
subtus in inferiore parte + obscure violaceo—fusco-violaceo, 
ceterum + pallido. 
Scapi palidi v. + cupreo-colorati, inferne + violacei, 
glabri—parce v. superne sparsim araneosi, folia superantes. 
Involucra parva, sat angusta, 11—12 mm. longa, basi 
ovata, sat lete viridia. Squame exteriores + adpresse v. erecto- 
patentes, breves, inferiores anguste ovato-lanceolate, vix ad 
medium interiorum adtingentes, superiores + late lineari- 
lanceolatz paullo longiores, supra + late virides, apicem versus 
et in marginibus seepe + purpurascentes, subtus magis obscure 
virides, apicem versus + purpurascentes, omnes anguste 
sed corspicue albo- v. superne purpureo-marginatz, sub apice 
cornubus brevibus obtusulis piceis v. purpurascentibus pre- 
dite, interiores lete virides, latiusculz, lineari-lanceolatz, sub 
apice + obscure purpureo cornubus atroviridibus v. obscure 
purpurascentibus ornate. 
