FIGURE 9 in New dictyostelid cellular slime molds from South Africa

FIGURE 9. Features of Raperostelium cymosum (Krug 15A). A. Very small aggregations at different stage of progress, early-mature aggregation with very short flattened progressively expanded streams that may partitioned, streams are ample, with irregular ill-defined margins, sometime lobed, thin in height, unfinished and open to incoming myxamoebae (left), cupuliform pseudoplasmodium with a remnant of an expanded flattened stream (right), B. Three early tight clusters of sorogens, a common pair of sorogens (early and late sorogens) rise up at different times after resumption of the pseudoplasmodium formation (left), an early curved sorogen close to a branched late sorogen (center), a cluster with sorogens of different stages of development, one of them bent over drastically, along with a mature unbranched sorocarp, short lobed streamed pseudoplasmodia are common at base (right), C. Cluster of open branched and unbranched sorocarps with an early late sorogen, some minute pseudoplasmodial masses remain close to the cluster (right), D. Solitary unbranched sorocarp with lobules of pseudoplamodium and mucilage at the base, E. Tight cluster of unbranched, branched and rebranched sorocarps, in almost all cases sorophores are of different heights but decreasing from the oldest to the younger joined sorocarps; they are delicate, irregular, broken, with an expanded reticulate slimy basal part, at the point of breakage there are marginal tiny masses of slime and undifferentiated cells; also, there are minute ascending masses of pseudoplasmodia on these sorophores of one tier of cells, with abundant slime, one (or more) tightly joined early sorogens as is typical for this species, a secondary sorogen may ascend as a branch or not, sori are of different diameters, one branch has collapsed, giving rise to a new sorogen (below, right), most bases are surrounded by a halo, F. Three representations of bases: clavate, with several cells above a larger terminal cell (above, left), three one-celled bases with round to clavate terminal cells in touch with each other and resting on a darker dense discrete granular structure (center, left), a clavate base with protruding cells as crampons, within a dense and abundant slime, G. Group of very variable tips: with an amorphous flexuous terminal cell, with elongated or short piliform terminus, with an elongated curved cell, in most cases tips are simple, single-celled, curved, thin and with a dense matrix of sticky granulated slime (attached spores), H. Microcysts, I. Large elliptical, mostly reniform spores with conspicuous consolidated polar to subpolar granules, spores are also vacuolated and with heterogeneous content. Bars: A–C = 50 μm, D–E = 100 μm, F–G = 15 μm, H = 3 μm, I = 6 μm.