Evolutionary history of plants foliage consisted of fern-like fronds, although they were not closely related to ferns. The oldest fossil evidence of seed plants is of Late Devonian age, and they appear to have evolved out of an earlier group known as the progymnosperms. These early seed plants ranged from trees to small, rambling shrubs; like most early progymnosperms, they were woody plants with fern-like foliage. They all bore ovules, but no cones, fruit or similar. While it is difficult to track the early evolution of seeds, the lineage of the seed ferns may be traced from the simple trimerophytes through homosporous Aneurophytes. This
Pitcher-Plants of Borneo to that end they have struck a very good balance." Commenting on the retail price of $36, he opined that "the quality of the narrative, colour photographs and drawings make this cost justifiable". Pitcher-Plants of Borneo Pitcher-Plants of Borneo is a monograph by Anthea Phillipps and Anthony Lamb on the tropical pitcher plants of Borneo. It was first published in 1996 by Natural History Publications (Borneo), in association with the Royal Botanic Gardens, Kew and the Malaysian Nature Society. An updated and much expanded second edition was published in 2008 as Pitcher Plants of Borneo, with Ch'ien Lee as co-author.