Lead oxides are a group of inorganic compounds with formulas including lead (Pb) and oxygen (O).
Common lead oxides include:
- Lead(II) oxide, PbO, litharge (red), massicot (yellow)
- Lead tetroxide or red lead, Pb3O4, minium, which is a lead (II,IV) oxide and may be thought of as lead(II) orthoplumbate(IV) [Pb2+]2[PbO4−4], vivid orange crystals
- Lead dioxide (lead(IV) oxide), PbO2, dark-brown or black powder
Less common lead oxides are:
- Lead sesquioxide, Pb2O3, which is a lead (II,IV) oxide as well (lead(II) metaplumbate(IV) [Pb2+][PbO2−3]), reddish yellow
- Pb12O19, monoclinic, dark-brown or black crystals
- The so-called black lead oxide, which is a mixture of PbO and fine-powdered Pb metal and used in the production of lead–acid batteries.
Well, that’s interesting to know that Psilotum nudum are known as whisk ferns. Psilotum nudum is the commoner species of the two. While the P. flaccidum is a rare species and is found in the tropical islands. Both the species are usually epiphytic in habit and grow upon tree ferns. These species may also be terrestrial and grow in humus or in the crevices of the rocks.
View the detailed Guide of Psilotum nudum: Detailed Study Of Psilotum Nudum (Whisk Fern), Classification, Anatomy, Reproduction