> [!cite] BHL link: this entry starts at [page 9](https://www.biodiversitylibrary.org/page/33068251) of TL-2 Vol. II
> Author links: [IPNI](https://www.ipni.org/a/3541-1) LSID 3541-1, [Wikidata](https://www.wikidata.org/wiki/Q17381047) QID Q17381047
> Support pages: [[Abbreviations|abbreviations]], [[Layout key|layout key]], [[Cite TL-2|cite TL-2]]
### Author
Häyren, Ernst Fredrik (1878-1957), Finnish botanist, associate professor of botany at Helsinki University.
**Abbreviated name**: *Häyr.* \[standard form in IPNI: *Häyrén*\]
#### Herbarium and types
[[Collection H|H]]; other material at [[Collection TURA|TURA]], [[Collection UPS|UPS]], [[Collection W|W]].
#### Bibliography and biography
Barnhart 2: 108; BJI 2: 65; BL 2: 59, 71, 84, 92, 94, 663, 664; CSP 15: 564; GR p. 608, *pl*. \[*40*\], cat. p. 64; Hirschp. 110; Kew 2: 547; Kleppa p. 106; KR p. 312-313; LS 11572-11574, 33974-33974a, suppl. 10502-10511; Saelan p. 189; SBC p. 122 ("*Häyr*.").
- Collander, R., Hist. bot. Finland 155 \[index\]. 1965; Collander et al., Acta Soc. Fauna Fl. fenn. 81: 182-190. 1973.
- Hustich, I., Luonnon Tutkija 61: 151-152. 1957 (portr.).
- Luther, Soc. Sci. fenn. Årsbok \[Vuosikirja 38C(3): 1-12. 1960 (portr.); Friesia 7: 374-375. 1961.
- Segerstråle, Mem. Soc. Fauna Fl. fenn. 34: 147-151. 1959 (portr.).
- Wood, R. D., Monogr. Charac. 1: 814. 1965.
### Publications
##### n.2241. Björneborgstraktens Vegetation och Kärlväxtflora
**Title**
*Björneborgstraktens Vegetation och Kärlväxtflora*. Anteckningar... Helsingfors 1909. Oct.
**Abbreviated title**: *Björneborgstr. Veg.*
**Notes**
*Publ*.: Jan-Jul 1909 (Nat. Nov. Aug(1) 1909), p. \[1\]-266, \[265, abbr.; 266 caption\], map.
*Copies*: H, MO, NY. – Acta Soc. Fauna Fl. fenn. 32(1).
##### n.2242. Über die Landvegetation und Flora der Meeresfelsen von Tvärminne
**Title**
*Über die Landvegetation und Flora der Meeresfelsen von Tvärminne*. Ein Beitrag zur Erforschung der Bedeutung des Meeres für die Landpflanzen von Ernst Häyrén. Mit 15 Tafeln und einer Karte. Helsingfors 1914. Oct.
**Abbreviated title**: *Landveg. Fl. Tvärminne*.
**Notes**
*Publ*.: shortly before 23 Mai 1914, p. \[i\]-vi, \[1\]-193, 3 charts, 1 map, *pl. 1-15. Copies*: H, US. – Acta Soc. Fauna Fl. fenn. 39(1). – Also diss. Univ. Helsinki. (Information T. Ahti).
*Ref*.: Luther, H., Acta bot. fenn. 62: 1-100. 1961 (new inventory).