Beselinez.] | LXXX. UMBELLIFERZ. 911 
posite, ramulis bracteis parvis linearibus subtensis. Tnvo!ueri et involucellorum bracteze, 
pauem,lineares. Flores albi, parvi, polygami. 
Species 1, montium Gallis australis et Alpiuni occidentalium incola. DC. Prod. iv.154. Reichb. JF. 
Jc. Fl. Germ. 1. 1918.— Genus hine Ligustico hine Pimpinelle affine, inflorescentia petalisque dis- 
tinctum. | 
110. Meum, Jacg. FI. Austr. iv. 2. t. 303.—Calycis dentes obsoleti. Petala ovata, acu- 
tiuscula, nune integra apice vix inflexa, nune acumine breviter inflexo et ob costam superne 
impressam emarginata. Discus: stylopodia depressa, margine integra. Fructus ovato- 
Oblongus, transverse subteres, commissura lata; carpella semiteretia; juga primaria 
elevata, aliformia, qualia; vitte oo. Carpophorum 2-partitum. Semen a dorso eom- 
pressum v. semilunatum, facie nune leviter concavum, nune profunde excavatum.— Herba 
perennis, glabra, subesspitosa. Folia pleraque radicalia, pinnatim decomposita, laciniis 
ultimis setaceis fasciculatis.  Umbelle composite. Involueri bractes 1-2 lineari-setaces 
v. 0, involucellorum pauez, setacez, scpius parve. — Flores albi v. purpurascentes. 
Species 1, montium Europs occidentalis et medie incole. C. Prod. iv. 162.  Reichb. f. Ic. Fl. 
Germ. t. 1932.— Genus ad. M. athamanticum, Jacq., restrictum, a ZLigustico parum differt petalis 
sepius vix inflexis (hoc respectu tamen variabilia sunt) et seminis forma, in speciminibus Hispanicis 
*lbumen facie sepius profunde excavatum vidimus, in Anglicis (ut in Hook. et Arn. Brit. Fl. depic- 
tum) concavum, in Gallicis rarius (ut in icone Reichenbachii) leviter tantum depressum. 
M. nevadense, Boiss., varietas minor videtur M. athamantici. M. Mutellinam, Giwrtn., ad Ligus- 
ticum referimus. ; 
lll. Cymopterus, Eaf. ex DC. Prod. iv. 203.—Calycis dentes prominuli, nune setacei 
v. lanceolati, nune minuti v. obsoleti. Petala ovafa oblonga v. oblanceolata, acumine lon- 
giusculo inflexo, ob costam superne impressam emarginata. Discus cirea stylos expla- 
natus, margine undulatus. Fructus ovatus v. ellipticus, obtusus v. retusus, subterés v. a 
dorso leviter compressus, carpellis semiteretibus v. dorso compressis at convexis, juga pri- 
maria crassa elevata, lateralia omnia, dorsalia et intermedia omnia v. qu: calycis den- 
tibus opposita, in alas erassiusculas v. attenuatas expansa; vitte oo, tenues. Carpophorum 
2-partitum, liberum v. a carpellis non solutum. Semen a dorso valde compressum, facie 
plus minus coneavyum.—Herb:z perennes, subesspitosz, glabrse, caudice crasso. Folia 
pinnatím decomposita, segmentis angustis parvis v. ineiso-pinnatifidis. Umbelle composite, 
sepius pauciradiatz. Involucri bractez 1—2 v. sepius 0, involucellorum o6, nune angus- 
tissime, nunc latiores e£ membranaces. — Flores albi v. flavi. 
: Species ad 10, Ameriece boreali-occidentalis incom. — Walp. Rep. ii; 417: Ann. ii. 715. Hook. FI. 
Bor. Amer. t. 95 (Selinum).—Genus a Lígustico differt habitu, disco explanato, alis fructus latis 
siepe undulatis, et seminibus nune leviter nune conspicue etsi late concavis. Sectiones a Torr. et 
.Gr. in Fl. N. Amer. i. 623, enumerate, in schedis Nuttallianis pro generibus propositz sunt, verisi- 
militer totidem species, speciebus Nuttallianis pro varietatibus habendis. 
112. Ligusticum, Linn. Gen. n. 3460.—Calycis dentes obsoleti v. rarius prominuli. 
Petala cuneata v. lata, acumine longo inflexo v. induplicato, ob costam superne impressam 
v. intrusam marginesque dilatatos emarginata v. 2-loba. Discus: stylopodia crassa v. 
conica, margine sepius leviter undulata v. subrugosa. Fructus ovatus v. oblongus, trans- 
verse subteres v. a dorso compressus, commissura lata; carpella a dorso compressa, facie 
planiuseula; juga primaria valde prominentia, acutiuseula v. in alas angustas expansa, 
lateralia cseteris ssepius latiora; vittee oO, tenues v. obseurt.. Carpophorum 2-partitum. 
Semen a dorso eompressum, facie planum. v. leviter concarum.—Herbz perennes, glabre, 
nunc elate ramosez, nunc humiles caule subsimplici. Folia pinnatim v. ternato-pinnatim de- 
composita. Umbelle composite, sepius multiradiate. Involueri bractes co, paucz v. 0, 
involucellorum oo, integre v. rarius dissecte.  Pétala alba v. rarius ochroleuea. Vitiz 
nune ad valleculas per 2-3 approximate, nune sipius fere zequidistantes, sub jugis non in- 
terrupt», cum endocarpio tenui semini adhrerentes, v. endocarpio crassiore minus conspicue 
et a semine solute. 
Species ad 20, ner hemispheerium boreale utriusque orbis disperse. . DC. Prod. iv. 197 (ezel. sp.).. 
