Download Abbildung und Beschreibung blühender Cacteen. by Von Dr. L. Pfeiffer und Fr. Otto PDF

By Von Dr. L. Pfeiffer und Fr. Otto

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Extra resources for Abbildung und Beschreibung blühender Cacteen.

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18. ) G. erectum, crassum, brunneo-viride, multangulare; vertice nudo, modo tuberculoso; sinubus latis; costis rotundatis, interrupte tuberculatis, tuberculis conicis; areolis immersis, latis, tomentosis; aculeis subulatis, brunneis, apice corneis, rigidissimis, centrali 1 erecto (rarius nullo), exterioribus 7 — 9 divergentibus, summis minimis. Habitat in Mexico, Guatimala. Die Gattung Gymnocalycium, welche ich a. a. O. zuerst eingeführt und dann im ersten Hefte des 2ten Bandes meiner „Abbildungen“ charakterisirt habe, scheint mir jetzt um so mehr eine wohlbegründete zu seyn, nachdem ich im Frühling 1845 in England, theils in den Gewächshäusern von Kew, theils in der Sammlung des Hrn.

Anst. v. Th. Fischer Cassel. Echinopsis pectinata. (Taf. ) Echinopsis pectinata F e n n e l in Otto’s Gartenzeitung 1843. N. 36. S. 282. — — — — S a l m Cact. in horto Dyck. cultae 1844. p. 25. — — — — — — — — Echinocactus pectinatus S c h e i d w. in Bull. de l’Acad. roy. de Bruxelles Août 1838. — — Wa l p e r s Repert. II. p. 321. pectiniferus L e m a i r e Cact. genera nova etc. 1839. p. 25. Wa l p e r s Repert. II. p. 322. E. obclavata vel obovata, glaucescenti-viridis, vertice subimpressa; costis 20 — 22 subverticalibus vel flexuosis, acutis, repandis, ad areolas inflatis; areolis approximatis, magnis, oblongis, albido-tomentosis, tandem subnudis; aculeis 20 — 24 rigidis, pectinatim adpressis, nascentibus purpureis, dein carneis, summo & infimo brevioribus, rarius centrali 1, erecto, deciduo.

Sie sind trichterförmig und bei vollkommner Ausbildung 2ʹʹ hoch und fast 3ʹʹ im Durchmesser, hell schwefelgelb, an den Spitzen der äussern Perigonialblätter geröthet. Die Röhre ist 1ʹʹ lang, dicht-zottig, besonders aber der ½ʹʹ lange Fruchtknoten, welcher hellgelb, mit dachziegelförmig sich deckenden Schuppen besetzt ist, welche linien-lanzettförmig, hellpurpurroth, spitz und an der Spitze borstentragend sind. Das Perigon ist mehrreihig, die äussern Reihen der Blätter sind umgekehrt-lanzettförmig, kurzgespitzt, die inneren feinzugespitzt und beinahe stachelspitzig, lanzettförmig, 1ʹʹ lang, 3ʹʹʹ breit.

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