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FNA | Family List | FNA Vol. 5 | Caryophyllaceae | Honckenya

1. Honckenya peploides (Linnaeus) Ehrhart, Neues Mag. Aerzte. 5: 206. 1783.

Arenaria peploides Linnaeus, Sp. Pl. 1: 423. 1753

Plants maritime, glabrous; rhizomes spreading. Stems simple or branched, 5-25(-50) cm. Leaf blades usually long-elliptic to ovate, sometimes lanceolate to oblanceolate, obovate, or broadly elliptic, 4-46 × 0.5-20 mm, succulent, margins often crenulate, apex acute to acuminate or apiculate. Pedicels 2-10(-26) mm. Flowers strongly honey-scented; sepals ovate, 3.5-7 mm; petals spatulate to narrowly oblanceolate, abruptly constricted toward base, 2.5-6 mm in staminate flowers, 0.8-2 mm in pistillate flowers; filaments 2.5-5 mm in staminate flowers; anthers 0.5-0.7 mm, 0.5-0.8 mm in pistillate flowers. Capsules ovoid to subglobose, 5-10 × (4.5-)5-12 mm, fleshy or chartaceous. Seeds 2-4 mm, rugulose. 2n = 66, 68, 70.

Subspecies 4 (3 in the flora): coastal North America, Eurasia.

Honckenya peploides is polymorphic. A number of species and infraspecific taxa have been described from various parts of its geographical range. Recently, four subspecies of H. peploides have been recognized (A. Kurtto 2001b; V. V. Petrovsky 1971, 2000), as here; subsp. peploides occurs along European coasts. Honckenya is subdioecious (Petrovsky 1971, 2000; T. Tsukui and T. Sugawara 1992), and is pollinated largely by small bees, hover-flies, flies, and ants (Tsukui and Sugawara). The report of Honckenya (as Ammodenia) in Chile is an error based on G. Macloskie (1903-1914, vol. 1) (C. Marticorena, pers. comm.).

1 Plants stout; stems 3-6 mm diam., ascending to weakly erect; pedicels 2-3 mm   1c subsp. robusta
+ Plants slender; stems 0.5-3 mm diam., prostrate to decumbent; pedicels 3-26 mm   (2)
2 (1) Stems 10-30(-50) cm × 1-3 mm, few; internodes of main stem 8-40(-60) mm; main stem leaves widely spaced, conspicuously larger than those of lateral branches, blade elliptic-obovate to broadly elliptic or narrowly elliptic or oblanceolate, (10-)20-46 × (0.5-)10-20 mm; pedicels (3-)8-16(-26) mm   1b subsp. major
+ Stems 5-15(-21) cm × 0.5-2.5 mm, numerous; internodes of main stem 5-30 mm; main stem leaves evenly spaced, similar in size to those of lateral branches, blade elliptic or ovate to obovate, 4-20(-30) × 3-9(-18) mm; pedicels 3-10(-15) mm   1a subsp. diffusa


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