zhuenliang0411

[zhuenliang0411]

Characterization of Zeyheria montana and Z. tuberculosa nectar chamber. (A = Light microscopy, B-H = SEM). (A) Longitudinal section through basal portion of the flower tube of Z. tuberculosa showing the nectar chamber (hatched area) that comprises the reduced nectary disk, the stipe covered with abundant ramified non-glandular trichomes, the petals axil and the base of corolla covered with abundant glandular trichomes. (B) Glabrous nectary disk in Z. montana. (C) Glabrous nectary disk in Z. tuberculosa. (D) Stomata on the nectary disk in Z. montana, note the flocculent material around the stomata. (E) Corolla base of Z. tuberculosa showing the glabrous petal's axils (arrow) and the upper region lined with glandular trichomes. (F) Detail of the nectar chamber showing the capitate glandular trichomes and papillae in Z. montana. (G) Detail of the nectar chamber showing the capitate glandular trichomes and papillae in Z. tuberculosa. (H) Detail of the capitate glandular trichomes of variable sizes showing the cuticle blisters (arrow head) in the apical region of secretory head in Z. tuberculosa. Scale bars = 200 ?m (A), 100 ?m (B, C), 20 ?m (D), 150 ?m (E), 50 ?m (F, G), 25 ?m (H). Abbreviations: as, adnate stamen; gt, glandular trichome; nc, nectar chamber; nd, nectary disk; ov, ovary; pa, papilla; pt, petal; sp, sepal; st, stipe.  

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[zhuenliang0411]

BANDAI Star Destroyer. Not colored. Plentiful and perfect details.

[zhuenliang0411]

蓝墨水处理后的草履虫刺丝泡。 The trichocyst of Paramecium after staining with blue ink.

[zhuenliang0411]

草履虫高倍镜下形态。 Paramecium at high magnification.