PHYSALIS MACROPHYSA (SOLANACEAE: PHYSALINAE: SUBGENUS RYDBERGIS), ITS TAXONOMIC DISPOSITION AND RELATION TO OTHER MATERIAL WITH LARGE INFLATED FRUITING CALYCES

Examination of the lectotype and isotype material of Physalis macrophysa Rydb. show its compatibility with P. longifolia, having nearly glabrous, ovate-lanceolate to broadly lanceolate leaves, and the presence of short, simple antrorse hairs on the petioles and pedicels. Other than its large inflate...

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Veröffentlicht in:Journal of the Botanical Research Institute of Texas 2019-07, Vol.13 (1), p.51-61
Hauptverfasser: Pyne, Milo, Orzell, Steve L., Bridges, Edwin L.
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Sprache:eng
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Zusammenfassung:Examination of the lectotype and isotype material of Physalis macrophysa Rydb. show its compatibility with P. longifolia, having nearly glabrous, ovate-lanceolate to broadly lanceolate leaves, and the presence of short, simple antrorse hairs on the petioles and pedicels. Other than its large inflated fruiting calyces (3.0–4.0 cm × 2.5–3.0 cm), it has little in common morphologically with another large inflated calyced Physalis macrosperma which is endemic to deep sands from a portion of the West Gulf Coastal Plain of the United States. Instead, P. longifolia has stems and pedicles that are either nearly glabrous or with antrorse, appressed, non-glandular hair and ovate-lanceolate leaves versus short glandular and non-glandular, spreading, upright hair and cordate to truncate leaves in the aforementioned Physalis macrosperma. We agree with previous authors that P. macrophysa Rydb., if meriting taxonomic status, should be treated as P. longifolia var. subglabrata (Mack. & Bush) Cronquist forma macrophysa (Rydb.) Steyermark or, alternatively, it may simply represent variation within P. longifolia not deserving of any taxonomic status. El examen del material del lectotipo e isotipo de Physalis macrophysa Rydb. muestra su compatibilidad con P. longifolia, con hojas que son casi glabras, lanceoladas ovadas a ampliamente lanceoladas, y la presencia de pelos cortos y simples en los pecíolos y pedicelos. Aparte de sus cálices grandes inflados en la fructificación (3.0–4.0 cm × 2.5–3.0 cm), tiene poco en común morfológicamente con el otro cáliz grande inflado Physalis macrosperma de arenas profundas que es endémica a una parte de la llanura costera del golfo oeste de los Estados Unidos. En cambio, P. longifolia tiene tallos y pedicelos que son casi glabros o con pelos antrorsos, adpresos, no glandulares y hojas ovado-lanceoladas, versus pelos cortos glandulares y no glandulares que se extienden hacia arriba y hojas cordadas y truncadas. Estamos de acuerdo con autores anteriores en que P. macrophysa Rydb., si merece un estatus taxonómico, debe tratarse como P. longifolia var. subglabrata (Mack. & Bush) Cronquist forma macrophysa (Rydb.) Steyermark o, alternativamente, puede representar simplemente una variación dentro de P. longifolia que no merece ningún rango taxonómico.
ISSN:1934-5259