Pachycladon cheesemanii Heenan & A.D.Mitch.

Caption:

Details

Name scientific

Pachycladon cheesemanii Heenan & A.D.Mitch. in Heenan et al., New Zealand J. Bot. 40: 559 (2002)

Preferred name

Pachycladon cheesemanii Heenan & A.D.Mitch.

Taxonomy reference

Heenan, P.B.; Mitchell, A.D.; Koch, M. 2002: Molecular systematics of the New Zealand Pachycladon (Brassicaceae) complex: generic circumscription and relationships to Arabidopsis sens. lat. and Arabis sens. lat. New Zealand Journal of Botany 40(4): 543–562.

Biostatus

Origin

Occurrence

Georegion

Schema

Biostatus source

Comment

Endemic

Wild

New Zealand

Political Region

Nomenclature

Original authors

Heenan & A.D.Mitch.

Authors

Heenan & A.D.Mitch.

Publication place

Year published

2002

Publication page

559

Nomenclatural code

ICN

Basionym

Pachycladon cheesemanii Heenan & A.D.Mitch.

Based on

Sisymbrium novae-zelandiae Hook.f.

Taxonomic rank

species

Canonical form

Pachycladon cheesemanii

Classification

Kingdom

Plantae

Phylum

Tracheophyta

Class

Magnoliopsida

Order

Brassicales

Family

Cruciferae

Genus

Pachycladon

Species

cheesemanii

Synonyms

Descriptions

Allan, H.H. 1961: Flora of New Zealand. Vol. I. Indigenous Tracheophyta: Psilopsida, Lycopsida, Filicopsida, Gymnospermae, Dicotyledones. Government Printer, Wellington.

Ischnocarpus novae-zelandiae (Hook.f.) O.E.Schulz

Description

Stock rather slender with deeply descending taproot, crowned by rosette of basal lvs. Radical lvs up to 10 cm. long, us. shorter, clad in stellate hairs; narrow- to broad-spathulate, narrowed into flat petiole, subentire to bluntly pinnatifid to pinnatisect. Lower cauline lvs spathulate to linear, entire or lobed, c. 2-1 cm. long; uppermost much reduced. Stems up to 30 cm. tall, slender, stiff, sparingly branched, ± stellate-pubescent, produced into slender racemes elongating in fr. Sepals c. 1·5 mm. long, oblong, subacute to obtuse and hooded, with scattered hairs towards apex, margins hyaline. Petals white, c. 3 mm. long, narrow-spathulate, long- clawed. Siliques glab., almost straight to arcuate, ± 3-5 cm. × 1 mm.: style minute; pedicels subpatent, c. 1-1·5 cm. long. Seeds ∞, c. 0·5- 0.75 mm. long, light brown.

Dawson, M.I. 2008: Index of chromosome numbers of indigenous New Zealand vascular plants.