Image: haeckel siphoneae

Siphoneae:
(top left): Caulerpa racemosa (Agardh) = Caulerpa racemosa (Forsskål) J.Agardh, habitus
(top right): Caulerpa uvifera (Agardh) = Caulerpa racemosa f. uvifera (C.Agardh) J.Agardh, habitus
(left): Caulerpa pinnata (Weber van Bosse) = Caulerpa mexicana Sonder ex Kützing / Caulerpa pinnata C.Agardh, habitus
(right center): Caulerpa peltata (Lamouroux) = Caulerpa peltata J.V.Lamouroux, habitus
(bottom left): Caulerpa paspaloïdes (Harvey) = Caulerpa paspaloides (Bory de Saint-Vincent) Greville, habitus
(bottom right): Caulerpa macrodisca (Decaisne) = Caulerpa peltata var. macrodisca (Decaisne) Weber-van Bosse, habitus
(right): Struvea plumosa (Sonder) = Struvea plumosa Sonder, habitus
(center): Neomeris kelleri (Cramer) = Neomeris annulata Dickie, cross-section
(left center): Neomeris kelleri (Cramer) = Neomeris annulata Dickie, habitus
(top center): Acetabularia mediterranea (Lamouroux) = Acetabularia acetabulum (Linnaeus) P.C.Silva, habitus
(bottom center): Bornetella capitata (Agardh) = Bornetella capitata (Harvey ex E.P.Wright) J.Agardh, habitus with lengthwise section through lower "head"
- from the book sets: Art Forms in Nature (Kunstformen der Natur) - by Ernst Haeckel (1899-1904).

- من صور كتب: النماذج الفنية في الطبيعة، لـ إرنيست هيكل (نشر ما بين 1899-1904 م.)