Reniform

Leber-, hepatic, -blende,/, reniform sphalerite, -blume,/., -bliimchen, n. hepatica, liverwort. 

Cucumis sativus (Cucurb.) Terminalia catappa (Combr.) Pelargonium reniforme (Ger.) Crotalaria thebaica (Leg.)... 

Latte, K.P. et al., 0-Galloyl-C-glycosylflavones from Pelargonium reniforme, Phytochemistry, 59, 419, 2002. 

Colloform general term for botryoidal. mamillary, reniform with banded texture... 

Cotton. Cotton is furnished by the down surrounding the seeds of various species of Gossypium. This fibre, which is unicellular and closed at only one end, is always isolated, and appears under the microscope as a ribbon twisted at intervals on its own axis like a spiral (Fig. 68, Plate VI). The wall is comparatively thin and sometimes somewhat raised like a rim the lumen is wide—three or four times as wide as the walls. This lumen is mostly empty, but sometimes contains granulations representing the original protoplasm in a dried state. The cotton fibre, which consists solely of cellulose, is coated in the raw state with a very thin cuticle, which is readily seen in a dry microscopic preparation. When raw cotton is treated with ammoniacal cupric oxide solution, whilst the cellulose of the fibre first swells and then dissolves, the cuticle remains almost intact, so that the fibres assume characteristic microscopic forms. The section of the cotton fibre (see Fig. 69, Plate VI) is elliptical, curved or reniform, with a fissure-like lumen. 

Siddiqui, M.A., Alam, M.M. Control of root-knot and reniform nematodes by bare-root dip in leaf extract or margosaandpersianlilac. Zeitsch. Pflazenkh Pflazen Sch 1988 95 138-142. 

Limonite is found in relatively small quantity in the Forest of Dean, where iron ores were worked in Roman times. It is called brush ore, locally, when it occurs in stalactitic, reniform or compact masses, containing some 80 per cent, of ferric oxide or 56 per cent, of metallic iron and smith ore when incoherent and containing only 54 to 58 per cent, of ferric oxide (38 to 41 per cent, of iron).2... 

Hisingerite likewise occurs in Cornwall, as dark brown, amorphous, reniform masses. Its hardness is 2-75, and density 1-74. It yields a conchoidal fracture and leaves a rust-brown streak.2 Its composition 3 approximates to Fe203.2Si02.2H20. 

The same hydrate is obtained on allowing a concentrated solution of ferric chloride to evaporate slowly in the cold. It separates out as reniform masses of lemon-yellow crystals, or in opaque, yellow rhombic prisms, according to circumstances.4 This hydrate melts at 37°.XL — -------... 

Chalcopyrite may be distinguished from iron pyrites by its relative softness, and by the fact that with nitric acid it yields a green solution which becomes blue on addition of excess of ammonia—one of the characteristic reactions for copper. Blistered copper ore is a botryoidal or reniform variety, with a smooth brassy appearance. 

Ovoid, ellipsoidal or reniform shaped-simple grains, occasionally obscurely 3- or 4-sided. 

Fig. 83.—Leaf outlines Linear (i) lanceolate (2) oblong (3) elliptical (4)1 ovate-lanceolate (5) oblanceolate (6) spatulate (7) obovate-lanceolate (8) orbicular (9) reniform (10) cuneate (ii).

Reniform, kidney-shaped. Examples Ground Ivy, Asarum. 

Reniform wider than long with rounded lobes at base. 

Taxonomy and description of P. sidoides vs. P. reniforme have been reviewed (1). Confusion about the correct identity of P. sidoides stems largely from Harvey and Sonder (9) including it as a variety within a broader concept of P. reniforme. Whether or not the name P. reniforme includes P. sidoides is thus not always clear. This is also reflected in the fact that into the late 1990s EPs 7630 was referred to as an extract of P. sidoides/P. reniforme (90). This does, however, not necessarily imply use of both species as the taxonomy of P. sidoides vs. P. reniforme remained doubtful until revision (91,92). The correct scientific name of the species is P. sidoides DC. Dreyer and Marais (92) summarised the diagnostic differences between the two species. 

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