FIGURES 42–47. Orthoseira johansenii R.L in Two new Orthoseira species (Bacillariophyceae) from lava tubes on Île Amsterdam and Big Island (Hawai΄i)

• Main Authors: Lowe, Rex L., Kociolek, J. Patrick, Vijver, Bart Van De
• Format: Other/Unknown Material
• Language: unknown
• Published: Zenodo 2013
• Subjects: Biodiversity; Taxonomy; Chromista; Ochrophyta; Bacillariophyceae; Orthoseirales; Orthoseiraceae; Orthoseira; Île Amsterdam
• Online Access: https://doi.org/10.5281/zenodo.5078797

FIGURES 42–47. Orthoseira johansenii R.L.Lowe & Kociolek sp. nov. Scanning Electron Micrographs. Fig. 42. External view of an entire valve showing two carinoportulae, the small hyaline central area and the rows of areolae and the (eroded) regularly placed linking spines. Fig. 43. External view of an entire valve showing two carinoportulae, a more irregular pattern of areolae, a larger hyaline central area and regularly placed linking spines. Fig. 44. Detail of the carinoportulae with a raised rim. Note also the raised areolae. Fig. 45. Detail of the valve face/mantle junction with big spines and silica outgrowths on the mantle. Fig. 46. Detail of two valves linked by bifurcating linking spines and one open girdle band with small perforations. Fig. 47. Detail of the perforated, open girdle bands. Scale bar represents 10 µm in Figs 42, 43, 46 & 47 and 1 µm in figs 44 & 45. Published as part of Lowe, Rex L., Kociolek, J. Patrick & Vijver, Bart Van De, 2013, Two new Orthoseira species (Bacillariophyceae) from lava tubes on Île Amsterdam and Big Island (Hawai΄i), pp. 39-52 in Phytotaxa 111 (1) on page 48, DOI:10.11646/phytotaxa.111.1.3, http://zenodo.org/record/5078779