302 
SÉAKCE DU 10 OCTOBRE 1919. 
latioribus, ligula duplo majore acuta, paniculæ amplæ ramis patulis vel 
divaricatis subtrïfldris teneris elongatis, glumis mucronatis minus cari- 
natis viridi-glaTicis. 
IIab. : America sept., Colorado ad Larimer, ait. 9 300 ped. (Crandall ! 
Radix fibrosa non reptans multicaulis, spiculæ 0 mm. longæ. 
Poa chionogenes Gdgr. — Receclit a P. arctica R. Br. statura duplo 
altiore foliis obtusis, ligula subnulla, panicula ambitu oblongo pyrami- 
data, spicalis majoribus longius pedicellatis, glumis acutis subduplo 
longioribus late scarioso-marginatis. 
H ab. : America sept., Colorado in Gray s Peak, ait. 12-13 000 ped. ( Cran - 
dall!). 
Glaucescens lævis sesquipedalis, a basi cæspitosa multicaulis, spicæ 
quam in planta norvegica, etc. pallidiores variegati multoque grandiores. 
j Folia curvula culmis duplo breviora, spiculæ 3,b mm. longæ, 
l glumæ concolores violaceæ subacutæ. — Spitzberg, ad 
\ Lommebay (Malmgren!) . Poa Malmgrenii Gdgr. 
1. \ Folia stricta culrnos subæquantia, spiculæ 6 mm. lo ngæ, 
I glumæ interne violaceæ ad apicem auratæ cuspidatæ. — 
[ Groenland, ad Ivordlunguak Vajgatsch (Hartz!). 
Poa Hartzii Gdgr. 
Ambæ formæ singulares P. abbreviatæ R. Br. Ligula scariosa duplo major 
in speciminibus grœnlandicis quam in cæteris, folia etiam densius fasci- 
culata. 
( Rubescens, folia lævia, gluma subaristata longe acuminata, spi- 
1 cæ rectæ — Cap, ad Landrivier ( Schlechter n. 6906!). 
j ) Rottbœllia heteroehroa Gdgr. 
\ Viridi-glaucescens, folia marginibus aspero-ciliata, gluma bre- 
I viter acuta, spicæ divergentes — Sibiria orient, ad Chabarowsk 
l (Desoulavy in Herb. fl. Ross. n. 2392!). Rottbœllia sibirica Gdgr. 
Duæ istæ affines R. compressée L.f. notis indicatis inter se valde diffé¬ 
rant. Surculi elongati foliosi, spicæ 4-b cm. longæ cylindrico-compressæ. 
Sporobolus Stapfianus Gdgr (S. festirus f. stuppea Stapf). — A typo ori- 
ginali (Schimper Abyss. edit. Il, n. 1692!) difîert foliis sæpe fiexuosis, pa¬ 
nicula (in eodem statu) laxiore magisque effusa, spiculis duplo majoribus, 
glumarum minus acutarum caryopside 2/3 sup. æquante. 
Hab. : Transvaal, ad Wonderboompoort ( Schlechter n. 3595!) et ad Cro¬ 
codile Rivier ( Ejusd . n. 3 900!). 
llerba gracilis glabra faciem Agrostidis capiltaris referens, spiculæ 
tenuissimæ. — Quod superest, specimina e Transvaal a cl. Schlechter 
n. 4207! et 4403! necnon et Ma. a. Zenker in Kameroun n. 540! cum planta 
abyssinica non vere concordant, unde videndum est num formas singu¬ 
lares ulteriusque investigandas constituai!tur. 
