108 
LYTHRACEX. 
Hotala apetala. 
Ammannia Rotala, F. M. coll. 
Foliis plerisque verticellato-ternis v. quaternis, fforibus apetalis 
t; iandris, calyce quinquedentato. 
Ad margines periodiee inundatos rivulorum fluminum Victoris 
et Sturt's Creek. 
Herba digitalis v. altior, passim humillima, semper glabra, szpe 
exspitem letum formans. Caules erecti v. adscendentes, inferne 
repentes et radicantes, rubelli, tetragoni. Folia linearia v. lanceo- 
lato-linearia, acuta, plana, integerrima, basin versus angustata, 
pleraque 4-8" longa et circiter 1" lata, inferiora si ulla opposita, 
omnia nitentia et lete virentia, nonnulla interdum quinato-verti- 
cillata. Flores vertieillati, numero foliorum floralium squales, 
sessiles, Calyx cum braeteolis ruber; dentes semilanceolato- 
deltoidei, tubo paulo breviores, plus minus acuminati, interdum 6. 
Filamenta pallida, antheris atrorubris didymis longiora. Annulus 
perigynus perminutim et obtuse lobatus. Capsula valvatim de- 
hiseens, tenerrima, cireiter 1" metiens, saturate rubra, subglobosa, 
calycem subzquans v. parum superans. Semina dimidiato-ovaía, 
nitentia, lzevia, e spadiceo nigrescentia, fere $" longa, indistincte 
striolata. 
Genera Rotale et Ammanis combinanda. R. illecebroides a 
cl J. Hooker inter plantas Indo-Australianas enumerata (vide 
Introd. to Fl. Tasm. p. 44) mihi ignota est. 
Ameletia diandra. 
Foliis oppositis ovatis v. orbicularibus v. subcordatis, /foribus 
apetalis majusculis diandris raro monandris, ealycis tubo dentibus 
parum longiore, staminibus fundo calycis insertis inclusis, sylo 
brevissimo, capsula bivalvi. 
.Cireum laeunas nec non secus ripas humidas depressas fluviorum 
Vietorie et Fitzmaurice River, sicut ad rivos iisdem tributarios 
frequens, 
Herba biuncialis usque spithamza, glabra. Caules simplices v. 
sepius ramosi, ereeti v. adscendentes v. inferne cum rhizomate 
radicantes. Rami tetragoni et non raro rubelli. Folia opposita, 
2—4" longa, integerrima, obtusa, sessilia, plana, floralia caulinis 
conformia et plus minusve minora. Flores axillares, solitarii, 
sessiles, spicas terminales subsessiles foliatas densas struentes. 
Calyces albidi, membranei, 13—2" longi; laeiniwm deltoidez, acu- 
minatz, zstivatione valvate, post anthesin iterum conniventes ; 
tubus pene tetragonus.  Bracteolz lineari-setacez, calycem semi- 
zquantes. Filamenta cireiter j" longa. Antherz minutz, didym:e, 
, 
x 
