Kamis, 12 Desember 2019

Ochnaceae

                              (Cronquist, 1981)
Trees, shrubs, or rarely herbs, most species glabrous, often producing proanthocyanins, but lacking ellagic acid and usually lacking mucilagesacs and channels , clustered crystals of calcium oxalate commonly presents in some  of the cells of the parenchymatous tissues, young stem ordinarily with cortical vascular bundles and sometimes with medullary bundles as well, nodes trilacunar or multilacunar, vessel segments with simple or occasionally both simple or bordered pits, sometimes some of them septate, some vasicentris tracheids sometimes present, wood-rays of diverse types, mostly hererocellular, usually only a few of them uniseriate, the others 2-4 (-8) seriate, wood-parenchyma sparse to abundant, variously distributed. Leaves evergreen, alternate, mostly simple, rarely pinnately compoud, usually with numerous parallel lateral veins, but the veins fewer in. Epidermis commonly with some mucilage-cells, stomates paracytic or sometimes anomocystic, petiolar vascular supply usually forming a siphonistele, stipule present. Flowers in terminal panicles, or in various other sorts of inflorescences, perfect, mostly regular or nearly so, but in Lophira with 2 of the sepals notably accrescent in fruit. The family Ochnaceae as here broadly defined consists of about 30 genera and 400 species.

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REFERENCES

Hidayat. T, Abdurahman. E (2017). Tumbuhan berbiji di Kampus UPI Bumi Siliwangi. Bandung : UPI Press Counquist. A. (1981). An Integrat...