Mericarp Morphology of Indian Species of Sida L. (Malvaceae) in Relation to Taxonomy

印度金午時花屬（錦葵科）之分果片形態與分類之關係

V. V. Sivarajan ； A. K. Pradeep ； E. J. George

《臺灣省立博物館半年刊》 45卷1期 (1992/06) Pp. 65-73

https://doi.org/10.6532/JTM.199206_45(1).0006

摘要

This paper deals with light microscopic studies on the mature mericarps of 17 taxa of Sida, with respect to their surface characters, size, shape, relative length with calyces etc. in relation to taxonomy. Mericarps are typically differentiated into a lower, one seeded indehiscent portion and an upper dehiscent portion which is often ornamented with a pair of awns. The upper and lower portions are set apart by a dorsal ＂shoulder＂. The lower cell is trigonal in cross section and is often laterally reticulate. The observations indicate that mericarp characters, are the best bet in the species level classification of this problematic genus.

關鍵字

Malvaceae ； Sida ； mericarp

並列摘要

本文就光學顯微鏡下觀察到的十七種金午時花屬之分果片之表面特徵、大小、形狀、與萼片之相對長度等做爲分類依據。分果片可分爲上、下兩部分，下半部包覆單一種子，無裂縫；上半部開裂且具一對芒刺。上下兩部之間有一背脊將其分隔。下分果片在其橫切面呈三角形，而側面常具網狀紋路。本研究顯示分果片之特徵爲種間分類上之大最佳特徵。

並列關鍵字

錦葵科 ； 金午時花屬 ； 分果片