Table 4 in A taxonomic revision of the Epischoenus group of Schoenus (Cyperaceae, tribe Schoeneae)

Table 4 Summary of key inflorescence, spikelet and nutlet characters used to differentiate species in the Epischoenus group. Dimensions are listed in mm and include 25th and 75th quartile values. Minimum and maximum values are given in brackets for cases where they are sufficiently different than quartile values. More detailed descriptions of characters are given under the circumscription for each species.
Primary proximal bracts with lateral extensionsSpikelet shapeSpikelet dimensions (mm)Nutlet shapeNutlet dimensions (mm)CommentsS. dregeanusLateral extensions: noLinear(6.1 —) 7.2 — 9.3 (‒11.0) £ (0.7 —) 1.1 — 1.6 (‒2.2)Obovoid or oblong1.6‒1.8 (‒2.3) £ 0.9‒1.0 (‒1.2)Leaves arising from culm sheaths; linear spikelets; nutlets rough at base and apexS. complanatusLateral extensions: yesLinear -lanceolate to lanceolate(6.7 —) 8.0 — 10.2 (‒12.7) £ (0.9 —) 1.4 — 1.6 (‒2.2)Broad elliptic(2.1‒) 2.4‒3.2 (‒3.5) £ (0.8‒) 1.2‒1.5 (‒1.8)Plant with flat culms and leavesS. quadrangularisLateral extensions: noLinear -lanceolate to lanceolate(5.7 —) 7.5 — 9.1 (‒12.0) £ (0.9 —) 1.1 — 1.6 (‒3.2)Broad elliptic2.5 — 3.1 £ 1.4Culms quadrangularS. selinaeLateral extensions: yesLinear -lanceolate to lanceolate(6.4 —) 7.8 — 9.8 (‒12.0) £ (0.6 —) 1.1 — 1.5 (‒2.6)Broad elliptic(1.7‒) 2.1‒2.3 (‒4.2) £ 0.7‒1.1 (‒1.5)Inflorescence with 1 or 2 spikes partially con- cealed by chartaceous extensions of primary inflorescence bractsS. rigidusLateral extensions: yesLinear -lanceolate to lanceolate(5.7 —) 6.6 — 7.4 (‒8.9) £ (1.1 —) 1.4 — 1.5 (‒2.3)Broad elliptic2.3‒2.7 £ 1.1‒1.4Inflorescence bracts with lateral charta- ceous extensions that cover only base of spikes; slight lateral branching of inflorescenceS. crinitusLateral extensions: noLanceolate(6.3 —) 7.1 — 7.9 (‒8.3) £ (0.9 —) 1.2 — 1.7 (‒2.1)Broad elliptic2.9 £ 1.5Hairy, ridged culms with few lanceolate spikeletsS. adnatusLateral extensions: noLanceolate to ovate(4.5 —) 5.1 — 6.0 (‒7.4) £ (1.0 —) 1.4 — 1.7Broad elliptic1.7‒2.3 (‒2.7) £ 1.1‒1.4Few spikelets per inflo- rescence; receptacle adnate to basal glumeS. gracillimusLateral extensions: noLinear -lanceolate(5.7 —) 6.5 — 7.2 (‒8.0) £ 0.9 — 1.6Broad elliptic2.3 £ 1.1‒1.4Thin culms with few lin- ear-lanceolate spikelets; spikelets often pendulousS. schonlandiiLateral extensions: noLanceolate(4.2 —) 4.8 — 7.1 (‒8.1) £ (0.9 —) 1.1 — 1.5 (‒2.6)Broad elliptic(1.4‒) 1.9‒2.2 (‒2.5) £ 0.8‒1.1Spikelets dispersed throughout inflores- cence and linear-lanceolate; spikelet receptable not adnate to basal glume; eastern speciesS. lucidusLateral extensions: noLinear -lanceolate to lanceolate(6.5 —) 8.3 — 10.2 (‒13.7) £ 1.3 — 1.7 (‒2.2)Broad elliptic(1.8‒) 2.2‒2.4 (‒2.5) £ 1.1‒1.4Spikelets and parts of sheaths often with short, thick hairs; inflorescence short and congestedS. neovillosusLateral extensions: noLinear -lanceolate to lanceolate(6.4 —) 8.0 — 9.1 (‒10.6) £ (1.0 —) 1.2 — 1.6 (‒2.2)Broad elliptic2.9‒3.4 £ 1.1‒1.4 (‒1.6)Spikelets and parts of sheaths often with long hairs; proximal rachis, primary inflorescence bracts and inflorescence relatively long