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- Mauseth, James D.; Ross, Robert G.
- Bradleya 1988 v.6 pp. 49-64
- tracheids, etc ; Cactaceae; branches; cacti and succulents; cortex; vascular bundles; wood; wood anatomy; Show all 8 Subjects
- ... Systematic anatomy of the primitive cereoid cactus Leptocereus quadricostatus. The genus Leptocereus is widely regarded as one of the most primitive of Cactaceae subfamily Cactoideae. It resembles the pereskias in having dense fibrous wood in its trunk and lower branches; this wood lacks vascular tracheids; it has septate protophloem fibres; and the ray cells are all thick walled and lignified. Ho ...