306 Th. Loesener. 
LXXXII. Mexikanische und zentralamerikanische Novitáten. Il. 
Unter Mitwirkung von Fachgenossen bearbeitet von Th. Loesener. 
(Originaldiagnosen.) 
IV. Umbelliferae. 
Von H. Wolff. 
29. Eryngium commutatum Wolff, nov. spec. 
Planta perennis; rhizoma breve radicibus numerosis funiformibus 
elongatis instructum. Caules 1—2 erecti, usque 25 cm alti, tenues, 
fistulosi, simplices, prophyllis 2 tantum ornati vel inferne 2—3-furcati, 
ramo caulem continuante nudo simplici, lateralibus erectis eo aequilongis, 
superne prophyllis 2 instructis. Folia in sicco tenuiter coriacea, in vivo 
-ut videtur carnulosa, supra sordide subtus glaucescenti-viridia, basalia 
pauca erecta vel patula, subsensim in petiolum latiusculum late mar- 
ginatum, in area mediana prominente superne latius ad basin versus 
semper angustius fistulosum, laminam + aequantem vel breviorem tran- 
seuntia, obovata vel obovato-elliptica vel subovali cum petiolo ad 8 cm 
longa, 12—20 mm lata, margine toto valde incrassato crenata, crenis 
obtusissimis inaequalibus vix obliquis, superioribus leviter imbricatis, imis 
+ obsoletis, omnibus inermibus vel breviter mucronulatis, utrinque sub- 
heteroneura, n. inferne parallelis, in pagina superiore saepe quasi ut in 
costam prominentem et petiolum continuantem fistulosam connatis, subtus 
omnibys + sejunctis, utrinque deinde palmatis, juxta marginem reticu- 
lato-venosis. Prophylla primaria 2 sessilia vel petiolo brevi lato fulta, 
fol. basal. vix minora, manifestius crenata, nervis in aream medianam 
latiuseulam dispositis; secundaria multo minora, postice spinoso-serrata, 
antice crenata. Capitula + ovoideo-semiglobosa, azureo-nigricantia; 
bracteae involucrales 8—10 subaequales s. a. patulae, supra argenteo- 
nitidae, subtus sordide azureae, oblongae vel spathulato-oblongae vel 
oblanceolatae, apice rotundatae, antice utrinque 2—4-serrato-spinulosae, 
postice inermes, 3—5-nerviae, 12—14 mm longae, + 5 mm latae, capi- 
tulis duplo longiores; florales graciles subsubulatae, basi late mem- 
branaceae, dorso superne coloratae, floribus s. a. subaequales. Sepala 
azurea anguste lanceolata, subsubito in mucronem brevem producta; petala 
oblonga, ca. 3/,—1 mm longa, azurea, superne leviter emarginata, lobulo 
inflexo triangulari obtusiusculo dimidio breviore. Fructus haud plane 
maturus ca. 3!/, mm longus; squamae laterales perpaucae, angustae, 
acutae, calycinae 2—3-seriatae vesiculiformes, obtusae, dorsales nullae? 
Mexico: Oaxaca: Sierra de San Felipe, in einer Höhe von 10300’ 
(Pringle, Pl. mex. no. 4834); blühend im Oktober. 
Nota: Maxime affine E. scaposo quocum adhue confusum (cf. Rose 
in Contr. U. S. Nat. Herb. III. 5. [1895] 300). 
30. E. Endlichii Wolff, nov. spec. (Sect. Carlinae Wolff). 
Planta disgracilis ca. 20 cm alta, perennis (vel monocarpica?), radice 
cylindrica, simplici, descendente. Caulis solitarius supra basin + 3 mm 
Pe EA MEER 
nt "4 
