Morphology and Anatomy of Fruits in New World Boehmeria in Relation to Taxonomy

Kravtsova, T. I.; Friis, Ib; Wilmot‐Dear, C. M.

doi:10.2307/4117760

Cited by 11 publications

(3 citation statements)

References 4 publications

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“…Pouzolzia often differs in its caducous stigma and strongly longitudinally ribbed perianth, but the only absolute distinction is its shiny rather than dull achene easily detachable from perianth at maturity and (usually) caducous stigma; the major differences between the two are in the anatomy of the fruiting perianth and outer layers of the achene (Kravtsova et al 2000, Kravtsova 2001, Wilmot-Dear et al 2009). Pipturus is distinguishable only by the pistillate perianth, which is succulent at maturity with a dark opening, a 'dark hole', at the apex after the early-caducous stigma has fallen.…”

Section: The Position Of Boehmeria In Tribus Boehmerieaementioning

confidence: 99%

The old World species of Boehmeria (Urticaceae, tribus Boehmerieae). A taxonomic revision

Wilmot‐Dear¹,

Friis²

2013

blum - j plant tax and plant geog

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Section: The Position Of Boehmeria In Tribus Boehmerieaementioning

confidence: 99%

The old World species of Boehmeria (Urticaceae, tribus Boehmerieae). A taxonomic revision

Wilmot‐Dear¹,

Friis²

2013

blum - j plant tax and plant geog

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“…Wilmot-Dear & Friis (1996: 8-11 & 71) demonstrated that the only entirely consistent morphological distinctions between these two genera were certain characters of the fruit. Subsequent anatomical studies (Kravtsova, 2001;Kravtsova et al, 2000Kravtsova et al, , 2003 demonstrated that these characters reflect underlying structural differences within both the fruiting perianth and pericarp. These morphological and anatomical distinctions are summarised in Table 1 and discussed below.…”

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Pouzolzia Rugulosa Transferred From Boehmeria, and the Distinction Between Boehmeria and Pouzolzia (Urticaceae)

Wilmot‐Dear¹,

Acharya²,

Kravtsova³

et al. 2009

Edinburgh J. Bot.

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Pouzolzia rugulosa (Wedd.) Acharya & Kravtsova, comb. nov., is transferred from the genus Boehmeria on the grounds of the anatomy and morphology of the fruit, correlated with molecular data. A revised set of anatomical and morphological characters is provided to distinguish between Boehmeria and Pouzolzia. Pouzolzia rugulosa shares morphological similarities with a group of serrate-leaved taxa in that genus known from Asia and Oceania. It is a shrub or small tree and is found along the southern slopes of the Himalayas from Himachal Pradesh in northern India to the mountains of northern Burma. It occurs in forest at elevations of up to 1900 m, mainly at forest edges and in clearings. A full description of Pouzolzia rugulosa, including drawings and SEM images of the fruit, is provided, together with a key.

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“…It was found in the result of comparative anatomical examination [25][26][27] that few layered, in many genera of the same type, highly specialized pericarp, often strongly mineralized, has been formed in parallel with foregoing processes of fruit complication and aggregation. Strongly reduced seed coat in Urticaceae is represented by tanniniferous membrane, brown or greenish due to chloroplasts, sometimes (Urtica) adhering to the pericarp.…”

Section: Urticaceaementioning

confidence: 99%

On Some Regularities of One-seeded Fruits Evolution

Kravtsova¹

2015

JLS

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Anatomical structure of differently originated seed envelopes in one-seeded indehiscent fruits of Urticaceae and Asteraceae members is studied using light and scanning electron microscopes. It was found that in anthocarps and involucrate fruits of both families the relations between the primary (pericarp) and secondary fruit envelopes (perianth and/or involucre) were composed under complexification (union) type, and not as substitution. Numerous examples of non-homologous resemblance in fruit envelope structure indicate a high degree of adaptability of certain histological types, recurring on a different morphological basis in different phyletic lines within a family. These tissue complexes represent widely occurring types of the pericarp (Utricaceae) or pericarp and seed coat tissue union (Asteraceae). This evolutionary repetition or pseudocyclic resemblance is apparently another common regularity of one-seeded indehiscent fruits evolution in addition to those enumerated in general by Zohary (1950).

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Morphology and Anatomy of Fruits in New World Boehmeria in Relation to Taxonomy

Cited by 11 publications

References 4 publications

The old World species of Boehmeria (Urticaceae, tribus Boehmerieae). A taxonomic revision

The old World species of Boehmeria (Urticaceae, tribus Boehmerieae). A taxonomic revision

Pouzolzia Rugulosa Transferred From Boehmeria, and the Distinction Between Boehmeria and Pouzolzia (Urticaceae)

On Some Regularities of One-seeded Fruits Evolution

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