Claim · model-written summary
In H. balearicum, a large cellular nodule forms first through asynchronous mesophyll divisions and gains a sheath.
- Taxon
- H. balearicum L.
Hypericum balearicumt0 - Organ / stage
- leaf mesophylle0
- Outcome
- A large cellular nodule forms firste0
- Qualifier
- non‐synchronous cell divisionse0
Verbatim
e0“A large cellular nodule forms first, by non‐synchronous cell divisions within the leaf mesophyll, and is surrounded by a sheath of two to three flattened cell layers”
t0“H. balearicum L.”
Title
Internal secretory structures in Hypericum (Clusiaceae): H. perforatum L. and H. balearicum L.
J. D. CURTIS; N. R. LERSTEN New Phytologist 1990. doi:10.1111/j.1469-8137.1990.tb00427.x
Other claims from this paper (8)
- Observation H. perforatum leaves and petals have schizogenous translucent oil cavities with a uniseriate epithelium.
- Observation H. perforatum black nodules comprise large cells without a central space and with a biseriate sheath.
- Observation Nodule cells accumulate black granular non-resinous contents.
- Observation Petal streaks are tubular cavities, nodules, or chimerical tubes.
- Observation H. balearicum leaves have bulging pustular cavities.
- Observation Central cells separate unevenly to form an irregular cavity with intruding cells.
- Observation Little or no oil accumulates in the H. balearicum cavity.
- Observation The peripheral cavity cell lining is irregular to flattened and empty.