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27 February 2006 Trichome morphology of eleven genera of the tribe Alysseae (Brassicaceae) occurring in Bulgaria
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Abstract

The leaf and silicule trichomes of 18 species of Alysseae were studied by scanning electron and light microscopy. Four trichome types are distinguished: (1) simple, (2) stalked 2- to 5-armed, (3) stellate and (4) dendritic trichomes. (1) Simple trichomes cover the leaves of Lunaria rediviva and, mixed with stalked 2- to 3-armed ones, compose the leaf indumentum of Camelina sativa. The simple trichomes on the silicules of Clypeola jonthlaspi subsp. microcarpa are columnar with transverse furrows. (2) Stalked 2-5-armed trichomes are present on the leaves of Draba korabensis, D. muralis, D. siliquosa and Erophila verna subsp. spathulata. Peculiar stalked trichomes with swollen globular base occur on the lower leaf surface of D. muralis. (3) Stellate trichomes cover the leaves of Alyssoides utriculata subsp. bulgarica, Aurinia saxatilis subsp. orientalis, A. uechtritziana and Clypeola jonthlaspi and the leaves and silicules of Alyssum cuneifolium s. str., A. orbelicum, A. pirinicum and Fibigia clypeata. (4) Dendritic trichomes co-occur with stellate ones on the silicules (but rarely on the leaves) of Berteroa species and Fibigia clypeata. The trichomes may be smooth (some stellate trichomes), minutely warty (simple and dendritic trichomes) or tuberculate (most of the stellate trichomes). The trichomes of the morphologically related species Alyssum pirinicum, a new combination validated here, and A. cuneifolium provide additional reliable features to distinguish them.

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References

1.

I. A. Al-Shehbaz 1987: The genera of Alysseae (Cruciferae; Brassicaceae) in the Southeastern United States. — J. Arnold Arbor. 68: 185–240. Google Scholar

2.

M. Ančev 1991: Genus Alyssum in Bulgarian flora. — In: S. Kozhuharov & B. Kuzmanov (ed.), Evolution of flowering plants and florogenesis 2. — Sofia. Google Scholar

3.

M. Ančev 2000: The trichomes of Alyssum (Brassicaceae). — Bot. Chron. 13: 151–168. Google Scholar

4.

M. Ančev & D. Uzunov 2002: Alyssum orbelicum: a new high-mountain species of sect. Odontarrhena (Brassicaceae) from Southwest Bulgaria. — Phytol. Balcan. 8: 25–30. Google Scholar

5.

T. R. Dudley 1964: Synopsis of the genus Alyssum. — J. Arnold Arbor. 45: 358–373. Google Scholar

6.

W. Greuter 1974: Note sur deux variétés grecques d'Alyssum doerfleri (Cruciferae) et sur la classification de quelques espèces vivaces de ce genre. — Candollea 29: 135–146. Google Scholar

7.

P. Hartvig 2002: Alyssum L. — Pp. 199–224 in: A. Strid & K. Tan (ed.), Flora hellenica 2. — Rugell. Google Scholar

8.

A. Hayek 1925: Cruciferae. — Pp. 370–485 in: Prodromus florae peninsulae balcanicae 1. — Repert. Spec. Nov. Regni Veg. 30(1). Google Scholar

9.

H. J. Hewson 1988: Plant indumentum, a handbook of terminology. — Austral. Fl. Fauna Ser. 9: 1–27. Google Scholar

10.

P. K. Holmgren & N. H. Holmgren 1998- (continuously updated): Index herbariorum. —  http://sciweb.nybg.org/science2/IndexHerbariorum.asp  Google Scholar

11.

J. A. Inamdar & N. V. Rao 1983: Light and scanning electron microscopic studies on trichomes of some Brassicaceae. — Feddes Repert. 94: 183–190. Google Scholar

12.

J. Jalas , J. Suominen & R. Lampinen (ed.) 1996: Atlas Florae Europaeae. Distribution of vascular plants in Europe 11. — Helsinki. Google Scholar

13.

J. Janchen 1942: Das System der Cruciferen. — Oesterr. Bot. Z. 91: 1–28.[  CrossRefGoogle Scholar

14.

P. Küpfer 1974: Recherces sur les liens de parenté entre la flore orophile des Alpes et celle des Pyrénées. — Boissiera 23: 11–322. Google Scholar

15.

E. I. Nyárády 1955: Alyssum L. — Pp. 318–355 in: T. Savulescu (ed.), Flora republicii populare Romîne 3. — Bucureşti. Google Scholar

16.

R. C. Rollins 1993: The Cruciferae of the continental North America. Systematics of the mustard family from the Arctic to Panama. — Stanford, Ca. Google Scholar

17.

R. C. Rollins & U. C. Banerjee 1976: Trichomes in studies of the Cruciferae. — In: J. G. Vaughan , A. J. MacLeod & B. M. J. Jones (ed.), The biology and chemistry of the Cruciferae. — London. Google Scholar

18.

R. C. Rollins & U. C. Banerjee 1979: Trichome patterns in Physaria. — Cambridge, Mass. Google Scholar

19.

R. C. Rollins & E. A. Shaw 1973: The genus Lesquerella (Cruciferae) in North America. — Cambridge, Mass. Google Scholar

20.

H. Runemark 2002: Clypeola L. — Pp. 236–237 in: A. Strid & K. Tan (ed.), Flora hellenica 2. — Rugell. Google Scholar

21.

N. Stojanov & B. Achtarov 1939: Neues Material zur Kenntnis der Flora des Pirin-Gebirges. — Izv. Carsk. Prir. Inst. Sofija 12: 181–187. Google Scholar

22.

K. Tan & V. Stevanović 2002: Draba L. — Pp. 237–242 in: A. Strid & K. Tan (ed.). Flora hellenica 2. — Rugell. Google Scholar

23.

W. L. Theobald , J. L. Krahulik & R. C. Rollins 1979: Trichome description and classification. — Pp. 40–53 in: C. R. Metcalfe & L. Chalk (ed.), Anatomy of the dicotyledons 1. — Oxford. Google Scholar
Minčo Ančev and Valentina Goranova "Trichome morphology of eleven genera of the tribe Alysseae (Brassicaceae) occurring in Bulgaria," Willdenowia 36(1), 193-204, (27 February 2006). https://doi.org/10.3372/wi.36.36116
Published: 27 February 2006
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