POLLINIA. ANDROPOGONEJE (AUCT. EDUARDO HACKEL). 181 
centem basi laxe tortam zequante. Palea 0. Antherz 2,5 mm. longa. 
Spiculie pedicellatze sessilibus conformes. 
Java pr. Sumbing (Junghuhn in h. Nees nune berol.). 
b. Monandra. Racemi 1—1,5 cm. longi. 
29. P. tenuis (Trin. in Mém. Ac. Petersb. Ser. 6, vol. 2, p. 306); 
Pleuroplitis producta Griseb. in Ledeb. Fl. ross. 4, p. 478; Andropo- 
gon productus Regel in Bull. Ac. St. Petersb. 5 (1866), p. 760, t. 2, 
ff. 16—24. 
Annua. Culmi 30—50 em. longi, filiformes, sulco exarati, glaberrimi, 
superne longiuscule nudi, basi ramosi, superne simplices. Vaginæ 
laxiuscule, superne subcarinat, excepto ore interdum piloso glaber- 
rimæ (etiam nodis), internodiis fere 3-plo breviores. Ligula truncata, 
hyalina, ciliolata, pilis stipata, non decurrens. Lamin® anguste lan- 
ceolatz, acuminatz, 1,5—3,5 cm. longs, 3—5 mm. late, flaceidz, 
virides, subtus appresse pubescentes, supra raripile v. glabræ, mar- 
gine basi undulato (nee, ut ait Trin., dentieulato) scaberul®, costa 
media tenui 1-nervi, nervis primariis utrinque 2 tenuissimis, secunda- 
riis crebris obsoletis percursæ. Racemi 3—4, graciles, subdigitati, 
strieti, pilosuli, e pallide viridi et purpurascente variegati; rhacheos 
subundulatz articuli spicula '/,—2-plo breviores, lineari-clavati, 
erassiuseuli, utrinque pilis albis acerescentibus (summis articulo 
paullo brevioribus) ciliati. Spiculze sessiles 2 mm. longze, lanceolatze, 
callo pilis spicula 4-plo brevioribus parce barbato ; gluma I"" mem- 
branacea, obtusiuscula, emarginata, interdum bimucronulata, carinis 
in '/, superiore breviter rigideque ciliatis, dorso canaliculato-impressa, 
subenervis (nervis 2 obsoletis in '/, sup. carinarum), lævis; II“ ovata, 
acuminata, in aristam patulam ipsam :quantem abiens, carina su- 
perne scabro-eiliolata, ceterum enervis, lzevis; II quam I” paullo 
brevior, lanceolata, acuta, hyalina, enervis, glabra; IV‘ quam II^ 
4—5-plo brevior, ovalis, obtuse bilobula, l-nervis, glabra; arista 
perfecta 7—9 mm. longa, columnä atro-spadicea exsertä quam subula 
paullo pallidior basi laxe torta paullo—'/, breviore. Palea 0. Stamen 
semper unum inveni (in figura Regelii 2 delineantur), anthera 0,6 mm. 
longa. Pedicelli articulum zequantes ; spicula pedicellata nunc sessili 
paullo brevior (1,5 mm. longa) et angustior eique simillima nisi 
gluma II“ mucronata nec aristata, nunc ad glumas 2 breves v. ad — 
unam brevissimam redacta, id quod interdum in uno eodemque speci- 
mine observatur. 
