> [!cite] BHL link: this entry starts at [page 159](https://www.biodiversitylibrary.org/page/33068401) of TL-2 Vol. II
> Author links: [IPNI](https://www.ipni.org/a/3844-1) LSID 3844-1, [Wikidata](https://www.wikidata.org/wiki/Q4497250) QID Q4497250
> Support pages: [[Abbreviations|abbreviations]], [[Layout key|layout key]], [[Cite TL-2|cite TL-2]]
### Author
Henrard, Jan Theodor (1881-1974), Dutch agrostologist and malacologist; studied pharmacy at Groningen (1901-1906) under Eykman; practicing pharmacist at Gorinchem 1909-1915, at the Hague 1915-1922; from 1921-1946 curator of the Rijksherbarium at Leiden, Dr. phil. (plant taxonomy) Utrecht 1929 under Pulle.
**Abbreviated name**: *Henr.* \[standard form in IPNI: *Henrard*\]
#### Herbarium and types
[[Collection L|L]]; other material [[Collection B|B]], [[Collection BR|BR]], [[Collection LAS|LAS]].
#### Bibliography and biography
AG 12 (2): 404; Backer p. 261; Barnhart 2: 158; BL 2: 423, 667; Bossert p. 171; Kew 2: 646; IH 2: 269; JW 2: 192; Langman p. 359; Lenley p. 220; MW p. 173, suppl. p. 95.
- Kuiper, Basteria 39(3-6): 69-74. 1975 (on H's work as a malacologist).
- Merrill, E. D., Contr. U.S. natl. Herb. 30 (1): 148. 1947 (bibl. Pacif. Isl.).
- Ooststroom, S. J. van, Blumea 22(2): 156-157. 1975 (portr.).
#### Composite works
Pulle, *Flora of Suriname, Gramineae* (with G. J. H. Amshoff).
#### Festschrift
Blumea, supplement iii, Jubileumdeel voor Dr. J. Th. Henrard Jubilee volume 1946. Leiden, p. \[1\]-125, \[126\], with portraits of H., dedication by H. J. Lam, a biographical sketch by W. A. Goddijn and a botanical bibliography by H. J. v. d. Hee.
#### Eponymy
*Henrardia* C. E. Hubbard (1946).
### Publications
##### n.2646. A critical revision of the genus Aristida
**Title**
*A critical revision of the genus Aristida* being a preliminary study and an introduction to the monograph. Leiden (Firma P. W. M. Trap) 1926-1928, 3 volumes.
**Abbreviated title**: *Crit. revis. Aristida*.
**Notes**
*Vol. 1*: 15 Jun 1926 (p. viii: Jun 1926; see p. 220), p. \[i\]-viii, \[1\]-220. – Mededeelingen van 's Rijks Herbarium Leiden. No. 54 (1926).
*Vol. 2*: 1 Aug 1927 (p. 464), cover, p. 221-464. – Id. 54 A (1927).
*Vol. 3*: 15 Jul 1928 (p. 701), cover, p. 465-701. – Id. 54 B (1929).
*Supplement*: Leiden (H. Buurman) 1933, *publ*. 1 Dec 1933 (p. 747), p. \[i\], 703-747. Id. 54 C (1933).
*Copies*: FAS, G, L, MO, US.
##### n.2647. Monograph of the genus Aristida
**Title**
*Monograph of the genus Aristida*. Proefschrift ter verkrijging van den graad van doctor in de wis- en natuurkunde aan de rijksuniversiteit te Utrecht op gezag van den rector-magnificus Dr. H. Th. Obbink, hoogleraar in de faculteit der godgeleerdheid, voor de faculteit der wis- en natuurkunde te verdedigen op woensdag 3 Juli 1929, ten 4 ure n.m. door Jan Theodoor Henrard conservator aan's Rijksherbarium geboren te Maastricht. Leiden (Drukkerij voorheen firma P. W. M. Trap) \[1929\]. Oct.
**Abbreviated title**: *Monogr. Aristida*.
**Notes**
*Publ*.: 3 Jul 1929, p. \[i\]-vii, front., \[1\]-153, *pl. 1-60. Copies*: MICH, USDA. – Thesis issue of vol. 1 of the complete work as listed below.
##### n.2648. A monograph of the genus Aristida
**Title**
*A monograph of the genus Aristida*. Leiden (1: Boekdrukkerij voorheen P. W. M. Trap, 2 and index: Drukkerij H. Buurman) 1929-1932, 2 vols. Oct.
**Abbreviated title**: *Monogr. Aristida*.
**Notes**
*Vol. 1*: 1 Oct 1929 (orig. cover), front., p. \[i-vii\], \[1\]-153, *pl. 1-60*. – Mededeelingen van 's Rijks Herbarium Leiden no. 58 (1929).
*Vol. 2*: 1 Jul 1932 (orig. cover), p. \[155\]-325, *pl. 61-169*. Id. 58a (1932).
*Index*: 1 Nov 1933 (orig. cover), p. \[i\*\], \[i\]-xii. – Id. 58b (1933).
*Copies*: G, MO, NY, US.
##### n.2649. Monograph of the genus Digitaria
**Title**
*Monograph of the genus Digitaria*. Leiden (Universitaire Pers) 1950. Oct.
**Abbreviated title**: *Monogr. Digitaria*.
**Notes**
*Publ*.: 15 Jan 1950 (p. 999: "edited \[= published\] 15 January 1950"), frontisp., p. \[i\]-xxi, \[1\]-999. *Copy*: U.