306 
SÉANCE DU 10 OCTOBRE 1919. 
Très sequentes affines sunt Davalliæ dubiæ G. Br. 
/ Segmenta pinnularum integra obtusa. — Australia, X, S. Wales 
i ( Mueller ) ... Davallia Muelleri Gdgr. 
' Segmenta pinnularum lanceolata. — Tasmania Loclder!) et ad 
i Gould’s G. ( Simson /). Davallia tasmaniea Gdgr. 
( Segmenta pinnularum acute dentata. — Australia, Victoria 
[Mueller!) .. Davallia cristatella Gdgr. 
Frons ampla glabra, soræ ad basin pinnularum sitæ ferrugineæ. 
Oleandra samoensis Gdgr. — Ab O. nereiformi Gav. (præcipue java- 
nica differt pinnis vel frondibus falcatis tenuiter undulatis ad eostam 
mediam marginesque pilosis. 
Mab. : Oceania, Samoa ad Upolu (Reineckel) 
Frons longe stipitata, pinnæ terminales 3-6-stellatæ acuminatæ sim- 
plices, rhizoma terrestre squamis irnbricatis nigro-lulvis pilosis obsitum. 
Drymoglossum assamense Gdgr. — A D. piloselloide Presl recedit 
fronde sterili late suborbiculate obtusa basi breviter truncata subsessili. 
Hab. : India orient., in Assam [Watt n. 10.477!) 
Longissime sannentoso-reptans glabrum, frons dimorpha : sterilis 
subrotunda, fertilis- vero oblongo-sublinearis. — D. carnosum Hook. (e 
China!) alteram speciem affinem sistit. 
Sequentes e polymorpbo Psiloto triquetro S\v. excerptæ : 
4 , 
^ Fructus 1,5 mm. latus. 2 
Fructus 3 mm. latus. — Oceania, Nova Zelandia [Astor!). 
Psilotum Novæ-Zelandiæ Gdgr. 
S Garni divergentes breviusculi crassi. 3 
/ Garni recti tenues elongati. 4 
Bractea fructifera falcata. — Australia, N. S. Wales ad Berowra 
} [Boorman!]. .*.. Psilotum flabeîlatum Gdgr. 
Bractea fructifera recta. — Antillæ, S. Domingo [Bory!]. 
Psilotum domingense Gdgr. 
Africa aust., Natal [Zeyher!]. 
Garni tenues recti. 
! 
\ 
) Garni crassi divergentes. — Nova Caledonia, ni. Koghi (Franc 
n. 29!). Psilotum neo~ealedonieum Gdgr. 
Psilotum natalense Gdgr 
Herbæ læves ramoso-dichotomæ, rami complanati alati, fructus trilo- 
cularis globoso-depressus bractea lineari suffultus solitarius axillaris 
lutescens. — Genus in sérié singulari bilicem quamdam referens vel 
potins nulli affine. 
Potentilla Ribui Gdgr. — Faciès omnino P. prostratæ Lap. et media 
inter liane et P. fruticosam L. a quibus recedit caülibus depresso-pros- 
tatis crassis confertis, foliolis minoribus undique sericeis subacutis aut 
fere obtusis subtus elevatim nervosis densis, lloribus sol i tari is sessilibus, 
calycinis segmentis acutioribus lanceolatis, petalisduplo majoribus subor- 
biculatis. 
Hab. : Himalaya, in Sikkim ad Chapopla, ait. 16.000 ped. [Riba et llho- 
moo n. 5265!) 
