31. They are umbillicate with flat to erect squamule lobes that attach from a central holdfast or cluster of rhizenes. 32. The substrate is often rock but this sponge is also common on kelp holdfasts and on other sponge species. 33. If the new growth is kept close to the wall, it will send out holdfasts that will attach themselves. 34. It was most likely the imprint of the holdfast of a stalked organism, such as an erniettomorph or rangeomorph. 35. Mr Ainscough was born at the Glenelg Community Hospital and continues to reside in the City of Holdfast Bay region. 36. Ivy grows small rootlets, appropriately called holdfasts , which make a glue that dissolves some of the mortar between bricks. 37. Each had a conical or vase-shaped porous skeleton of calcite similar to that of a substrate by a holdfast . 38. A single alga typically has just one holdfast , although some species have more than one stipe growing from their holdfast. 39. A single alga typically has just one holdfast, although some species have more than one stipe growing from their holdfast . 40. The fossils have been conjectured to represent a holdfast for some stalked form possibly an octacorallian, or something else entirely.