IMPERATA, ANDROPOGONEJE (AUOT. EDUARDO HACKEL). 93 
Spieule 4—5 mm. long, villis e callo ortis mollissimis densis Spi- 
cula 2—3-plo longioribus einete, pallidze v. sordide violaceo-suffuse. 
Gluma I” inferne chartaceo-membranacea, superne hyalino-membra- 
nacea, obtusa v. obtusiuscula, integra, marginibus dorsoque a basi 
ad '/; usque villis mollibus gluma plus duplo—3-plo longioribus dense 
vestita, reliqua dorsi parte seaberula, superne ciliolata, 7—9-nervis, 
nervo nullo apicem attingente medio reliquis longiore, lateralibus 
primariis secundariisque gradatim versus margines decrescentibus, 
superne cum proximo interiori confluentibus ; gluma He I»*" æquans, 
subcarinata, carina dorsoque ad '/, usque villosa, ceterum prime 
simillima, 5—7-nervis, nervis brevioribus. II: quam Ir: '/,—duplo 
brevior, late lineari-oblonga, hyalina, obtusissima, apice sspe laci- 
ilata, ciliolata, enervis; IV* quam III* '/,—duplo brevior, ovata, 
acuta v. aeutiuseula v. denticulata, hyalina, enervis, glabra. Palea 
quam gluma quarta paullo usque 3-plo brevior, fere rectangularis, 
retusa v. bidentata, hyalina, enervis, glabra. Stamina filamentis. 
valde elongatis, antheris oblongo-linearibus 3,5—4.5 mm. longis; 
stigmata 3—5 mm. longa brunnea v. atroviolacea stylos aquantia. 
a, genuina. Vaginæ nodi glabri. Laminæ lineares, superiores cito 
decrescentes, pungentes, rigidissim&, glaucze. Panicula basi apiceque 
vix attenuata obtusissima densissima, rhachi robusta, ramis primariis 
s:epius binis ; spieulze plerumque 5 mm. longs, villis duplo v. paullo 
plus duplo breviores.— I. arundinacea Cyr. s. str.; Lagurus cylindricus 
Linn.; Saccharum cylindricum Lam. Encycl. 1, p. 594 tab. 40 f. 2 
(mala); S. laguroides Pourr. in Act. Soc. Toul. 3 (1788) p. 326; S. 
Sisca Cav. Ic. 3, t. 292; Imp. cylindrica Beauv. Agrost. Expl. planch. 
p. 5, t. 5, f. 1; Calamagrostis Lagurus Koel. Deser. gram. p. 112; 
Ic.: Host. Gram. aust. 4, t. 40. Ten. Fl. neap. t. 211 (mala); Reichb. 
Ie. f. 1504. Variat insuper : 
Subvar. 1. europea. Anderss. l. c. p. 159. Ligula ovata cc. 2 mm. 
longa, raro brevior. Laminze sepius convolutze v. superne planiusculz 
2 —4 mm. late. — I. Sieberi, Opiz Verzeichn. p. 190; Saech. eylindr. 
europazum Pers. syn. 1, p. 103. 
In glareosis arenosisque przecipue ad margines rivulorum per totam 
zonam mediterraneam ; ad mare nigrum et caspieum (Szovits, Ba- 
lansa 668, in Turkestania pr. Taschkent ete. ex Regel, Punjab (Hook. 
et Thoms.), in Farsistan (Aucher-Eloy), Mesopotamia (Hausskn.), 
in Arabia petrea (Schimp. un. it. 1835 nr. 114), deserto lybico 
(Aschers.), Egypto (multi eollect.), regn. Tunetano (Vahl h. Havn.), 
in deserto Sahara pr. Biskra (C. de Cand.), Marocco (Ball), insulis 
— Canariensibus (Bolle). 
