Enteropogon paucispiceus (Lazarides) B.K.Simon |
Derivation
Enteropogon Nees, in Lindl., Intr. Nat. Syst. Bot. 2nd edn, 448
(1836); from the Greek enteron (intestine) and pogon (a beard),
perhaps alluding to the beards on the callus or in the axils of the spikes.
paucispiceus- from the Latin paucus (few), spica (thorn) and -eus (resembling). Inflorescence with few branches.
Published in
Austrobaileya 2: 1 (1984).
Common synonyms
Enteropogon unispiceus (Lazarides) B.K.Simon var. paucispiceus
Lazarides
Habit
Perennial, tufted. Culms slender, 4460 cm tall, 24-noded. Mid-culm
internodes mid-green or glaucous. Lateral branches simple or sparsely branched
or branched. Leaves mostly basal. Leaf-sheaths outer margin hairy. Ligule a
fringe of hairs. Leaf-blades filiform, flat or involute, 310 cm long,
0.51.7 mm wide. Leaf-blade surface scabrous. Leaf-blade margins scabrous.
Inflorescence
Inflorescence digitate, with spicate branches. Spikes 24, unilateral,
511 cm long. Rhachis angular. Spikelet packing broadside to rhachis, lax,
regular.
Spikelets
Spikelets appressed, solitary. Fertile spikelets at least 3-flowered, comprising
1 fertile floret, with diminished florets at the apex, lanceolate, laterally
compressed, 45 mm long, breaking up at maturity. Spikelets disarticulating
below each fertile floret. Spikelet callus 0.81.2 mm long. Floret callus
glabrous, obtuse.
Glumes
Glumes persistent, similar, thinner than fertile lemma, gaping. Lower glume
lanceolate, 23.6 mm long, 5075% length of upper glume, membranous,
1-nerved, midnerve scaberulous. Lower glume lateral nerves absent. Lower glume
apex acuminate, muticous or mucronate. Upper glume lanceolate, 4.15.3
mm long, 7580% of length of adjacent fertile lemma, membranous, 1-nerved,
midnerve scaberulous. Upper glume lateral nerves absent. Upper glume apex acuminate,
mucronate or awned. Upper glume awn 01 mm long.
Florets
Fertile lemma lanceolate or elliptic or oblong, dorsally compressed, 4.87
mm long, cartilaginous or coriaceous, 3-nerved. Lemma surface smooth or scaberulous,
rough above. Lemma apex entire, acuminate,1-awned. Median (principal)
awn 812.8 mm long overall. Palea 2-nerved. Palea apex acuminate. Apical
sterile florets 1(2) in number. Apical sterile florets linear or lanceolate.
Apical sterile lemmas acute,1-awned. Apical sterile lemma awns 34
mm long. Grain flattened, concavo-convex, 25 mm long.
Continental Distribution:
Australasia.
Australian Distribution:
Queensland: Darling Downs, Leichhardt, Moreton, Port Curtis, Warrego.
Classification. (GPWG
2001):
Chloridoideae: Cynodonteae
Notes
Endemic. SE Qld, from the coast to c. 600 km inland.
Inflorescence and detail of inflorescence (scanned specimen)
© Queensland Herbarium
by Will Smith