220 MONOCOTYLEDONEE. ISCHEMUM. 
t Spicularum pedicellatarum glumz I** et 11% acuminat®, muticze. — Innovationes extravaginales (n. 15, 16) 
15. I. heterotrichum ; spiculis sessilibus glabris, cum callo 
9 mm. longis. 
Culmi szepius prostrati, dein ascendentes, ramis erectis —50 cm. 
altis gracilibus simplicibus v. sepe ramulos floriferos breves agentibus, 
omnes plus minus compressi, glaberrimi, apice subclavati. Vagina 
compresse, earinatz, laxiuseulz v. a culmo solutze, breviter biaurieu- 
late, summa subinflata eum vagina evoluta a racemis parum remota 
v. eorum basin eingens. Ligula —2 mm. longa, truncata, ciliata, cum 
vaginæ auriculis confluens. Lamins ad ortum contract, dein e basi 
rotundata lineari-lanceolate, in */, inferiore latiores, acutissim& v. 
acuminatze, 5—15 em. long&, 9—15 mm. lat, glabr& v. basi fimbria- 
tz, preter margines scabros undulatos lzeves. Racemi erecti, 5—6 cm. 
longi, crassi, compressi; articuli pedicellique spicule medium subsu- 
perantes, angulo exteriore pilis fulvis rigidulis suberectis articulo bre- 
vioribus, angulis interioribus pilis brevissimis albis mollibus patentibus 
ciliati. Spieulze sessiles subrhomboideo-lanceolatze, callo 2 mm. longo 
dorso glabro basi pilis fulvis ipsum szpius superantem barbato, inferne 
straminez, superne rufescentes ; gluma I** in parte superiore trian- 
gulari-aeutata, apice membranaceo bidentula, carinislatiuscule alata, 
alis glabris, dorso lzvissima, in '/, superiore distincte 4-nervis ; II^ 
subeoriacea, mucronulata, in '/, superiore carinata, carina alata, 
marginibus hyalinis eiliolatis; III* quam I= paullo brevior, ovata, 
chartacea, acuminata, 3-nervis, marginibus hyalinis ciliata ; ejus palea 
lanceolata, binervis ; IV* quam II '/, brevior, chartacea, late oblonga, 
breviter bidentata, ciliolata, inter dentes aristam exserens jam in '/ 
gluma eoncrescentem gracilem 12—15 mm. longam imperfectam v. 
subperfectam prope basin flexuoso-geniculatam. Spiculæ pedicellatz 
cum callo 1 mm. longo pilis ipso duplo longioribus barbato 7 mm. 
longe ; gluma I™ ab '/, inferiore alata, 7-nervis, glabra, reliqua ut in 
spiculis sessilibus. 
Madagascar : Mayotte, Nosibé (Boivin in h. vind.) ; ins. Comores 
(Boivin in h. vind.); ins. Nicobares (Jelinek in h. vind.). 
Obs. An hujus loci: Andropogon comoroensis Steud. Synops. 1, 
p. 431 in ins. Comoro a Boivin lectus? — Etiam A. aristulatus Steud. 
l. c. p. 372, species huic valde affinis videtur. 
16. I. koleostachys; spieulis sessilibus pilosis cum callo 5 mm. 
longis. — Andropogon koleostachys Steud. Synops., 1, p. 376; A. 
decussatus Steud. Synops. 1, p. 377? 
