> [!cite] BHL link: this entry starts at [page 221](https://www.biodiversitylibrary.org/page/33189692) of TL-2 Vol. IV
> Author links: [IPNI](https://www.ipni.org/a/24801-1) LSID 24801-1, [Wikidata](https://www.wikidata.org/wiki/Q63727) QID Q63727
> Support pages: [[Abbreviations|abbreviations]], [[Layout key|layout key]], [[Cite TL-2|cite TL-2]]
### Author
Pfeiffer, Louis \[later: Ludwig\] Karl Georg (1805-1877), German (Hesse-Nassau) botanist and malacologist; Dr. med. Marburg 1825; practicing physician at Kassel 1826-1833; military physician in Poland 1831; from 1833 active as Privatgelehrter; travelled to Cuba 1838-1839; Dr. phil. h.c. Marburg 1875.
**Abbreviated name**: *Pfeiff.* \[standard form in IPNI: *Pfeiff.*\]
#### Herbarium and types
[[Collection KASSEL|KASSEL]] (no longer extant except for some ferns and mosses (see also Laubinger 1905)); some specimens at [[Collection LE|LE]], [[Collection MW|MW]] and [[Collection WRSL|WRSL]]. – Dr. G. Follmann informs us that at least 90% of the Pfeiffer material at [[Collection KASSEL|KASSEL]] was destroyed during World War II. – Correspondence with D.F.L. von Schlechtendal at [[Collection HAL|HAL]]; other letters at [[Collection G|G]].
#### Bibliography and biography
ADB 25: 643-646 (by E. Wunschmann); Backer p. 659; Barnhart 3: 79; BFM no. 2345; BM 4: 1562-1563; Bossert p. 308; CSP 4: 872-873, 8: 611-612, 11: 4-5, 12: 574, 17: 840; Frank 3 (Anh.): 76; GF p. 70; GR p. 120; Hegi 5(2): 696; Herder p. 88, 187, 329; Hortus 3: 1201 (Pfeiff.); Jackson p. 15, 125, 126; Kelly p. 175; Kew 4: 290-291; Langman p. 581; Lasègue p. 455; LS 20601-20605; Morren ed. 2, p. 6; MW p. 386; NAF ser. 2. 4: 44; NI 1524, 1: 216, 3: 55; Nordstedt p. 25-26; PR 7103-7109, 10617, (ed. 1: 7974-7979); Rehder 1: 77, 5: 666; SBC p. 129; TL-1/972-976, 1149; TL-2/1044, see F. Otto; Zander ed. 10, p. 701, ed. 11, p. 800.
#### Biofile
- Anon., Ber. Ver. Naturk. Cassel 24/25, 1878; Bonplandia 3: 33. 1855 (Leop. cogn. *Bradley*); 6: 49. 1858 ("Ludwig Georg Carl", cogn. Leopoldina: Bradley); Bot. Not. 1878: 44 (b. 4 Jul 1805, d. 2 Oct 1877); Brockhaus' Conversations-Lexikon ed. 13. 12: 887. 1885 ("Louis Georg Karl"); Bull. Soc. bot. France 24 (bibl.): 237. 1878 (obit.); Hessische Morgenzeitung 1877, no. 8274, reprinted in Leopoldina 14(1-2): 7-9. 1878; J. Bot. 16: 32. 1878 (death).
- Fischer, Th., \[advertising pamphlet, Cassel Aug 1874, 2 p. for P's Nomenclator botanicus. Copy at U\].
- Hesse, R., *in* I. Schnack, ed., Lebensbilder aus Kurhessen und Waldeck 1830-1930, 6: 249-253. 1958 (biogr., brief bibl., sources; "Carl Georg Ludwig" and "Louis").
- H.K., Monatschrift für Kakteenkunde 1(10): 135. 1892 (biogr. notice, portr.), see also Kakt. Orchid. Rundschau 4: 62. 1976.
- Kanitz, A., Magy. novén. Lap. 1(11): 195-196. 1877 (obit.).
- Lauburger, C., Abh. Ber. Ver. Naturk. Cassel 49: 81-102. 1905 (on Pfeiffer's moss herbarium at KASSEL).
- Lindemann, E. von, Bull. Soc. Natural. Moscou 61(1): 55. 1886.
- Pfeiffer, A.L., Die Familie Pfeiffer 61-70. 1886 ("Louis").
- Pfeiffer, L., Kakt. Orchid. Rundschau 4(2): 26-29. 1979 (facsimile of 4 p. from Beschr. Syn. Cact.).
- Sayre, G., Bryologist 80: 515. 1977.
- Schmid, G., Chamisso als Naturforscher 171. 1942.
- Stafleu, F.A., Regn. veg. 71: 301, 339. 1970 (relations Pfeiffer/Miquel).
- Stearn, W.T., Cactus J. 8: 39-46. 1939 (on *Abb. Beschr. Cact.* q.v.; biogr. sketch; portr.).
- Wittrock, V.B., Acta Horti Berg. 3(3): 147. 1905.
- Zuchold, E.A., Jahresber. naturf. Ver. Halle 5: 46. 1853.
#### Composite works
with J.H. Cassebeer, (but Pfeiffer main author): *Uebers. Kurhessen Pfl.* 1844, see TL-2/1044. The book was received at Regensburg in Mar 1844; and p. x is dated 24 Feb 1844, which would put the date of publication at 24-28 Feb or Mar 1844; Schlechtendal reviewed it for Bot. Zeit. only on 9 Mai 1845 (Bot. Zeit. 3: 326-327). A further copy is at FI.
#### Name
We have not been able to establish the order of the Christian names given to Pfeiffer when he was baptized. He himself signed himself Louis but also Ludwig Pfeiffer in print and (in so far as we know) in correspondence. The Louis was latinized to Ludovicus in Latin book titles. The names appear as Carl Georg Ludwig (in necrology in Hessische Morgenzeitung, hence quite possibly authentic), Karl Georg Ludwig, Ludwig Georg Karl and Ludwig Karl Georg (Karl also as Carl). We have no indication how Pfeiffer was baptized but follow his own apparent preference for "Louis", at any rate in his earlier publications (at least until 1855). A.L. Pfeiffer (1886) also lists our author as Karl Georg Louis (Inf. G. Follmann).
#### Eponymy
*Pfeiffera* Salm-Dyck (1845); *Pfeifferago* O. Kuntze (1891).
### Publications
##### n.7815. Enumeratio diagnostica Cactearum
**Title**
*Enumeratio diagnostica Cactearum* hucusque cognitarum. Auctore Ludovico Pfeiffer, ... Berolini (sumptibus Ludovici Oehmigke) 1837. Oct.
**Abbreviated title**: *Enum. diagn. Cact.*
**Notes**
*Publ*.: 19-25 Feb 1837 (see TL-1/972), p. \[i\]-viii, \[1\]-192. *Copies*: B, FI, G, MO, NY, US, USDA.
*Ref*.: Anon., Lit. Ber. Flora 7: 21-24. 28 Feb 1837.
##### n.7816. Beschreibung und Synonymik der in deutschen Gärten lebend vorkommenden Cacteen
**Title**
*Beschreibung und Synonymik der in deutschen Gärten lebend vorkommenden Cacteen*. Nebst einer Uebersicht der grösseren Sammlungen und einem Anhange über die Kultur der Cactuspflanzen. Von Dr. Louis Pfeiffer in Kassel. Berlin (Verlag von Ludwig Oehmigke) 1837. Oct.
**Abbreviated title**: *Beschr. Synon. Cact.*
**Notes**
*Publ*.: 19-25 Feb 1837 (see TL-1/973), p. \[i\]-vi \["iv"\], \[1\]-231, \[232, err.\]. *Copies*: MO, NY, USDA.
*Ref*.: Anon., Lit. Ber. Flora 7: 21-24. 28 Feb 1837, 75-76. 28 Mai 1837.
##### n.7817. Abbildungen und Beschreibung blühender Cacteen
**Title**
*Abbildungen und Beschreibung blühender Cacteen*. Von Dr. L. Pfeiffer,... \[vol. 1 only: und Fr. Otto,...\]. Figures des Cactées en fleur peintes et lithographiées d'après nature. Avec un texte explicatif... Cassel (Verlag \[2: Druck und Verlag\] von Theodor Fischer). \[1838-\] 1843-1850, 2 vols. Qu.
**Abbreviated title**: *Abbild. Beschr. Cact.*
**Notes**
*Co-author* (vol. 1 only): Christoph Friedrich Otto (1783-1856).
*Publ*.: in twelve parts of five plates each with accompanying unpaginated text; 1: \[i-iii\], *pl. 1-30*, 2: \[i-iii\], *pl. 1-30. Copies*: BR (fully col.), G (fully col.), NY (partly col.); IDC 5635.
|vol. |part |*plates* |dates |
|--- |--- |--- |--- |
|1 |1 |1-5 |Oct 1838 |
| |2 |6-10 |Aug 1839 |
| |3 |11-15 |Sep 1839 |
| |4 |16-20 |Sep 1840 |
| |5 |21-25 |Mar 1842 |
| |6 |26-30 |Jul 1843 |
|2 |1 |1-5 |Jan-Feb 1845|
| |2 |6-10 |Oct 1846|
| |3 |11-15 |Nov 1846|
| |4 |16-20 |Oct 1847|
| |5 |21-25 |Feb-Mar 1848|
| |6 |26-30 |Jan-Feb 1850|
The dates are based on the receipt of the parts by Hinrichs at Leipzig. The plates are lithographs by F.J.U. Prestele. The book was published in two editions: half-coloured (flowers only), and fully coloured on wove paper. – A copy with fully coloured plates was offered by Junk (Cat. 214, no. 243. 1979) at Hfl. 3.800. =.
*Ref*.: Junk, Rara 68. 1900-1913.
- Stearn, W.T., Cactus 8: 39-46. 1939 (*General commentary* and list of plates with current names).
##### n.7818. Einige Worte über die subalpine Flora des Meissners
**Title**
*Einige Worte über die subalpine Flora des Meissners*. Dem Herrn Geheimen Hofrath Dr. Rich. Harnier zu Cassel am Jubiläumstage seiner den 24. September 1794 rühmlichst erlangten Doctorwürde in dankbarer Ergebenheit gewidmet von Dr. Louis Pfeiffer. \[Kassel (Druck der Hotop'schen Officin) 1844\]. Oct.
**Abbreviated title**: *Subalp. Fl. Meissn.*
**Notes**
*Publ*.: 24 Sep 1844 (see t.p.), p. \[1\]-16. *Copy*: HH.
##### n.7819. Flora von Niederhessen und Münden
**Title**
*Flora von Niederhessen und Münden*. Beschreibung aller im Gebiete wildwachsenden und im Grossen angebaute Pflanzen. Mit Rücksicht auf Schulgebrauch und Selbststudium bearbeitet von Dr. Louis Pfeiffer,... Kassel (Druck und Verlag von Theodor Fischer) 1847-1855, 2 vols. Duod. (in sixes).
**Abbreviated title**: *Fl. Niederhessen*.
**Notes**
*1*: Mai-Jul 1847 (p. xiv: Mar 1847; Hinrichs 21-24 Jul 1847; Bot. Zeit. 23 Jul 1847), p. \[i\]-1, \[1\]-428.
*2*: Jul 1855 (Hinrichs 2-3 Aug 1855; BSbF post 25 Aug 1855; Bot. Zeit. 12 Oct 1855), p. \[i\]-xiii, \[1\]-252.
*Copies*: B, G, NY.
*Ref*.: Schlechtendal, D.F.L. von, Bot. Zeit. 5: 535-537. 1847.
##### n.7820. Vollständige Synonymik
**Title**
*Vollständige Synonymik* der bis zum Ende des Jahres 1858 publicirten botanischen Gattungen, Untergattungen und Abtheilungen. Zugleich systematische Uebersicht des ganzen Gewächsreiches mit den neueren Bereicherungen und Berichtigungen nach Endlicher's Schema zusammengestellt von Dr. Ludwig Pfeiffer... Kassel (Verlag von Theodor Fischer) 1870-1871. Oct.
**Abbreviated title**: *Vollst. Synon.*
**Notes**
*Publ*.: 1870-1871, in two parts. – Second t.p.: "*Synonymia botanica* locupletissima generum, sectionem vel subgenerum ad finem anni 1858 promulgatorum in forma conspectus systematici totius regni vegetabilis schemati Endlicheriano adaptati...". *Copies*: B, BR, FI, G, H, MO(2), NY, Stevenson.
*Erste Hälfte*: Oct 1870-Jan 1871 (Bot. Zeit. 13 Jan 1831 just publ.; ÖbZ 1 Mar 1871 "so-eben", Flora 2 Mai 1871 ("neu"), p. \[ii\*-iii\*\], \[i\]-viii, \[1\]-380.
*Zweite Hälfte*: Mar-Aug 1871 (not yet out fide adv. ÖbZ 1 Mar 1871; Reviewed Bot. Zeit. 1 Sep 1871, ÖbZ 1 Feb 1872; cover of combined volume dated 1871), p. 381-674, 364a-b (err.).
*Note*: 364a-b and 671-674 issued conjugate, see MO copy in original cover.
*Erstes Supplement*: Aug\[?\] 1874 (p. viii: Jan 1874; J. Bot. Nov 1874), p. \[ii\]-viii, \[1\]-45.
*Copies*: BR, G, MO, NY, Stevenson, U, USDA. – "Synonymik des botanischen Klassen-, Familien-, Gattungs– und Sektionsnamen. Erstes Supplement zu dem 1870 erschienenem Werke..." Cassel (Verlag von Theodor Fischer) 1874; title on p. \[ii\]: "Synonymiae botanicae 1870 editae supplementum primum...". Actually a supplement to both the *Vollst. Synon.* as well as to the *Nomencl. bot.* 1, with e.g. a listing of variants and errors contained in Steudel, *Nomenclator*, ed. 2, and D.N.F. Dietrich, *Syn. pl.* TL-2/1464. The BR and USDA copies, in original covers, have on p. \[i\*-ii\*\] the advertisement for the *Nomencl. bot.* of Aug 1874, by Theodor Fischer (see above Fischer 1874). This might point at publication in Aug 1874.
*Neue Ausgabe*: 1887, p. \[ii\*-iii\*\], \[1\]-viii, \[1\]-674, suppl.: \[ii\]-viii, \[1\]-45. *Copies*: US, USDA.
*Ref*.: Ascherson, P., Bot. Zeit. 586-588. 1 Sep 1871.
##### n.7821. Nomenclator botanicus
**Title**
*Nomenclator botanicus*. Nominum ad finem anni 1858 publici juris factorum, classes, ordines, tribus, familias, divisiones, genera, subgenera vel sectiones designantium enumeratio alphabetica. Adjectis auctoribus, temporibus, locis systematicis apud varios, notis literaris atque etymologicis et synonymis. Conscripsit Ludovicus Pfeiffer,... Cassellis \[Kassel\] (sumptibus Theodori Fischeri) \[1871-\] 1873-1874, 2 vols. (4 parts). Qu.
**Abbreviated title**: *Nomencl. bot.*
**Notes**
*Publ*.: In parts of 80 pages, the precise dates of which are not yet known to us. See below for details in so far as known to us. *Copies*: BR, FAS, FI, G, H, NY, U, US.
*1*(*1*): 1871-1873 (reviewed as a whole by Die Natur, 26 Jun 1873), p. \[i-vi\], \[1\]-808, p. \[i\]: t.p.; p. \[iii-vi\]: praefatio, Vorwort and publisher's note requesting subscriptions.
*1*(*2*): 1874-1875 (t.p. 1874), p. \[i-vi\], p. 809-1876, \[1-2, err.\], p. \[i\]: t.p., \[iii-vi\] list of subscribers.
*2*(*1*): 1874 (t.p.), p. \[i\], \[1\]-760.
*2*(*2*): 1874-1875 (t.p. 1874), p. \[1\], 761-1698.
Both volumes complete: Bot. Zeit. 27 Aug 1875, Flora 1 Sep 1875.
###### *Vol. 1*
|Part |pages |Bot. Zeit. |other refs. |
|--- |--- |--- |--- |
|1 |1-80 |8 Dec 1871 |J. Bot. Feb 1872; Flora 9 Dec 1871
|2 |81-161 |16 Feb 1872 |J. Bot. Mar 1872
|3 | |10 Mai 1872 |Flora 1 Mar 1872
|4 | |14 Jun 1872 |
|5 | |12 Jun 1872 |
|6 | |12 Jul 1872 |
|7 | |30 Aug 1872 |
|8 | |27 Sep 1872 |
|9 | |15 Nov 1872 |
|10 |
|11 |
|12 | |24 Jan 1873|
|13 | |21 Feb 1873|
|14 | |9 Mai 1873|
|15 | |20 Mai 1873|
|16 | |3 Oct 1873|
|17 | |24 Oct 1873|
|18 | |12 Nov 1873|
|19 | |16 Jan 1874|
|20 | |20 Mar 1874|
|21 | |29 Mai 1874|
|22 | |26 Jun 1874|
|23 | |24 Jul 1874|
|24 | |21 Aug 1874|
|25 | |27 Nov 1874|
|26 | |27 Dec 1874|
|27 | |12 Mar 1875|
|28/29 | |11 Jun 1875|
| | |Schluss|
*Vol. 2*
|Part |Bot. Zeit. |
|--- |--- |
|1 |12 Jul 1872 |
|2 |30 Aug 1872 |
|3 |27 Sep 1872 |
|4 |15 Nov 1872 |
|5 | |
|6 |24 Jan 1873 |
|7 |24 Jan 1873 |
|8 |21 Feb 1873 |
|9 |9 Mai 1873 |
|10 |30 Mai 1873|
|11 |27 Jun 1873|
|12 |1 Aug 1873|
|13/14 |3 Oct 1873|
|15 |24 Oct 1873|
|16 |12 Dec 1873|
|17 |16 Jan 1874|
|18 |27 Feb 1874|
|19 |20 Mar 1874|
|20/21 |29 Mai 1874|
|22 |26 Jun 1874|
|23 |24 Jul 1874|
|24 |21 Aug 1874|
|25 |27 Nov 1874|
|26 |25 Dec 1874|
|27 |12 Mar 1875|
| |Schluss|
We have seen only one copy of the original preface and Vorwort (BR), and have also encountered a reprint of the Latin part (praefatio) in one other copy. All other copies lack this preface which is of especial interest because Pfeiffer often indicates *type-species* for generic names which constitute in many cases the first selection of a lectotype. In this "praefatio" he states: "species plantarum in libro meo omnio negliguntur, excepta indicatione illarum, quae typum generis novi aut novo modo circumscripti vel sectionis offerunt." German version ("Vorwort"): "Einzelne Arten sind nur dann genannt, wenn Sie als Typus neuer Gattungen oder Abtheilungen dienen." \[Single species are mentioned only when they serve as type of new genera or sections\]. Hence Pfeiffer is the first reference book to indicate type species in the sense of the International Code of Nomenclature in a more or less systematic way. In case Pfeiffer's choice can be shown to have been erroneous or based on a misinterpretation of the protologue it can of course be overruled as provided for by ICBN 8.1. – The book is an extremely important index of all names of taxa above the rank of species published up till 1858; it not only provides references to first uses, but also to later usage which often provides an opportunity to establish the date and place of valid publication of names so far cited with a reference to a non-valid publication.
The D.P. Rogers, G, NY and US copies show the division of the volumes 1 and 2 after p. 808 and 760 respectively, the U copy has divisions following p. 928 and 840.
*Ref*.: Anon., J. Bot. 15: 159. 1877 (continuation planned by Uhlworm); Bot. Zeit. 53(2): 359. 1899 (sold at reduced price).
- Eichler, A.W., J. Bot. 12: 379-380. Dec 1874 (work completed).
- Pfeiffer, L., Bot. Zeit. 6: 825-834. 1848 (sample treatment and announcement of plans).