Tas. 8026. 
LISTROSTACHYS Montttra, © 
tes West Tropical Africa. 
Orcuipacea. Tribe VANDER. 
Listrostacuys, Reichb. f. in Bot. Zeit. 1852, p. 930; Benth. et Hook. f. Gen. 
Plant. vol. iii. p. 583, sub Angreeco. 
L. Monteirx, Reichb. f. in Linnea, vol. xli. p. 76; Rolfe in Thiselton- 
Dyer Fl. Trop. Afr. vol. vii. p. 156; inter species affines foliis latis, 
racemis foliis szepissime longioribus et calcare erecto subcurvato distincta. 
Herba epiphytica, robusta, 1-2 ped. alta. Caules erecti, subcompressi. 
Folia oblonga vel obovato-oblonga, suboblique biloba, obtusa, basi sub- 
cuneata, 5-8 poll. longa, 13-2 poll. lata, coriacea. Racemi erecti, 4-1 
ped. longi, multiflori. Bractex late ovate, subobtuse, cucullate, 3-4 
poll. longee. Pedicelli 6-9 lin. longi. Flores flavido-albi, calcare basi 
virescente apice ochraceo. Sepa/a arcte recurva, basi lata, dein acumi- 
natissima, 5-6 lin. longa. Petala sepalis subsimilia, minora. Labellum 
4-5 lin. longum, basi late ovatum, cucullatum, dein acuminatum, recur- 
vum; calear erectum, latum, plus minusve curvatum, 13-2 poll. longum. 
Columna latissima, 1 lin. longa, apice rostrata, acuminata, decurva; 
pollinarii stipites 2, graciles; glandula lineari-oblonga, apice recurva, 
apiculata.—Angreecum antennatum, Krinzl. in Engl. Jahrb. vol. xvii. 
p- 61. 
Instrostachys bidens, Rolfe, was figured in a recent 
issue of the Botanical Magazine (t. 8014), where some 
remarks appear on the genus and on the three other 
species previously figured. L. Monteirx, Reichb. f., though 
strikingly different in appearance, agrees in the structure 
of the very characteristic pollinarium which led to its 
original separation from Angrecum. In other respects the 
genus is rather polymorphic. Out of about sixty species 
over fifty are continental, and the remainder Mascarene, 
so that the genus is essentially African. It is also typically 
western, as four-fifths of the continental species are only 
known from West Africa, the remainder being Hast 
African, with a single outlying species (LZ. arcuata, 
Reichb. f.) in extra-tropical South-east Africa. This is 
occasionally met with in cultivation, and it may be added 
that about a third of the species have appeared in gardens 
at different times. 
Listrostachys Monteire is a common West African 
Species, which was originally described from dried 
specimens collected at Bembi in Angola by Mrs. Monteiro, 
JuLy Ist, 1905, 
