270 Hermann Wolff. — Umbelliferae-Saniculoideae. 



singulum caulem amplectentibus, vaginis paulatim in petiolo laminare angustatis; pe- 

 tiolo 8 — 9 cm longo, i — 1,5 mm lato; lamina \ — 2 cm longa pinnatipartila vel bi- 

 pinnatipartita, paucis segmenlis linearibus ornata ; segmentis simplicibus incisisve dr 

 5 — 8 mm longis, Y2 — ^ V2 ^^ laus, sensim setaceo-spinuloso-terminatis; prophyllis 

 cymae primariis basalibus conformibus sed minoribus, inlernodio paulo superanlibus vel 

 aequantibus, superioribus magis reductis, parlilis vel pinnalifidis { — 2 cm longis. In- 

 florescenlia fere in cyma unilaterale disposila; capitulis ovoideis 10 mm longis et 6 mm 

 latis, brevissime pedunculatis, ab involucro spinoso sufTultis. Bracteis involucri 8 line- 

 aribus {\ — 4,5 mm longis et i mm latis) margine inlegiis, rigidis, spinoso-acuniinalis 

 capitulum excedentibus. Bracteis floralüjus inferioribus minimis flores haud vel vix ex- 

 cedentibus, medianis auctis exsertis, supremis longe productis involucralibus simillibus 

 8 — 12 mm longis; sepalis ovato-lanceolatis obtusis et spinuloso-mucronalis vel acumi- 

 natis, spinula brevissima, dorso laeve, nervo medio prominente ^/2 mm longo; sljlis 

 cylindricis, paulo divergentibus, inclusis fere Y2 ™™ longis. Achaeniis 2 mm longis 

 et 1 mm latis, ellipsoideis, squamis vesiculosis, piriformibus, crebre scabriuscule punctu- 

 latis conformibus sed minoribus intermixtis, densissime obteclis. « 



Argentinia: >Prov. Buenos Aires prope vicum Salto in pratis humidis et in limo 

 lacunarum incola. « 



E. Purpusii Hemsl. et Rose in Contr. U. S. Nat. Herb. XIII. (1901) 311. — Perennc; 

 caulis 60 — 80 cm longus, nudus, apice plurifurcatus, ramis cymose divisis. Folia basalia 

 numerosa 25 — 30 cm longa, ad 12 mm lata, margine sat dense anguste spinoso-lobala 

 (dentata), dentibus latitudinem folii non superantibus, saepe basi spinulis accessoriis an- 

 gustis auctis. Capitula 2 cm et ultra longa, longiora quam latiora; bracleae involucrales 

 erectae, spinoso-pungentes, inlegerrimae, 8 — 12 mm longae; florales pungentes, integer- 

 rimae. Styli elongati. Ovarium inferne nudum, superne squamis paucis ovatis obsitum. 



Mexiko: Puebla, Cerro de Cacalotl (Purpus n. 4109, nach Hemsley und Rose). 



E. tenuissimum Hemsl. in Hook. Ic. 4. ser. VI. 4 (1899) t. 2580. — E. 

 ienue Hook, et Arn. Bot. Beech. Voy. (1840) 293. — Planta perennis? gracilis, erecta, 

 ca. 15 cm alta. Caulis solitarius inferne simplex et foliosus, superne parce bre- 

 viterque ramosus, apice 2 — 3-furcatus, ramis abbreviatis semel vel bis cymose divisis. 

 Folia basalia sub anth, jam emortua, caulina rigidula, ad caulis apicem versus valdo 

 sensim decrescenlia, angusta, inferne ut in petiolum auguslala, antice 3-loba, lobis 

 angustis divaricatis, margine toto anguste spinuloso-serralis, spinulis tenuibus, patulis; 

 fulcrantia et prophylla primaria Ulis similia, minora. Inflorescenlia depauperata; capi- 

 tula breviter pedunculata ovoidea, 7 — 10 mm longa; bracteae involucrales rigidae, 

 lineari-subulatae; florales siniiles, flores superantes. Sepala oblongo-lanceolata breviter 

 crasseque mucronata; petala oblongo-ovalia, lobulo inflexo subaequilato, breviore, apice 

 denticulato instructa. Fructus immaturi ovarium squamis parvis vesiculiformibus obsitum. 



Provinz des mexikanischen Hochlandes: Jalisco (Beechey, nach Hemsley). 



Nota. Species subdubia esse videlur; speciinen adliuc unicum noluin. Cl. Hemsley 

 ipse putat forsitan speciracn cxiguum specici alicujus esse; scc. Ind. Kcw. ad E. Wrightii re- 

 ferendum. 



E. tuberosum Raf. Florula ludovic. (1817) 60. — "Radice tuberosa, foliis an- 

 gustis indivisis, serrato-spinosis enerviis caulinis amplexicaulibus; floribus corymbosis, 

 perianthus spinosus octophyllus. — Chardon tubcreux Rob. pg. 429. This plant is 

 a real Eryngium, slem round, a little knobby, 1 — 2', the radical leaves are thick, 

 striated and elongated. Perianthe plane, phoranthe globular, with acute and concave 

 scales, calyx with 5 acuminate divisions; seeds compressed winged. A variely rises 4', 

 has radical leaves 1'long and only 4 flowers." 



Nomina dubia vel nuda. 

 E. alhovillosum Forsk. Fl. aegypt.-arab. (1776) pg. XUI. — Ins. Mclita. 

 E. amethystinum Pall. It. III. (1776) 196. 

 E. carthamoides Smith in Rees, Cyclop. Xlil., ex Ind. Kew. 



