90 DR. F. MUELLER'8 MONOGRAPH : | 
18. EUCALYPTUS TRACHYPHLOIA. Arborea, ramulis angulatis, foliis 
alternis modice petiolatis angusto-lanceolatis subfaleatis in acumen 
tenue angustatis opacis subtifissime venosis pellucide punctatis, vena 
longitudinali margini subcontigua, umbellis paniculatis 3-5-floris, 
pedicellis pedunculo brevioribus fructu zequilongis angulatis, fructibus 
parvis ecostatis truncato-ovatis 3-loculatis, valvis deltoideis profunde 
inclusis, seminibus apteris. 
Hab. In eollibus ad flumen Burnett. Anth. Sept., Oct. 
Arbor mediocris, cortice in trunco ramisque persistente cinereo-fusco 
frustuloso rugoso. Folia 3-5" longa, 5-8" lata, in petiolum 6-9" 
longum paulo angustata, subtus parum pallidiora. Fructus circiter 3” 
metientes apice sensim contracti. 
19. EUCALYPTUS BICOLOR (A. Cunn. in Mitchell, Trop. Austr. p. 390. 
E. parviflora, Muell, MSS.). Fruticosa vel arborea, ramulis teretius- 
culis, foliis alternis lanceolato-linearibus v. lanceolatis leniter curvatis 
vel faleatis sensim acutatis subtiliter penniveniis nitidulis pellucide 
punctatis, vena peripherica а margine parum remota, umbellis axilla- 
ribus terminslibusque solitariis v. paniculatis 5—7-floris, pedunculis 
partialibus petiolo vix sequilongis, pedicellis calycis tubo semiovato | 
ecostato sequilongis vel brevioribus, operculo hemispheerico v. semi- 
ovato mutico tubo perparum bréviore, capsulis minutis semiovatis 
obscure bicostatis apice vix contractis 3—4-loculatis vertice planius- 
culis, valvis infra marginem insertis inclusis, seminibus apteris. 
Hab. In planitiebus collibusque sterilibus a sinu Carpentaria usque ad 
. regiones orientales Australie extratropicas. Anth. autumno. 
Frutez vel arbor minor, cortice sordide cano rugoso in trunco ramisque 
vestitus. Folia petiolo semunciali vel paulo longiore predita, ut- 
plurimum 21—41" longa, 3-6 lineas lata basi acuta. Calycis tubus 
sesquilinearis. Filamenta alba ad 11” longa. Anthere subglobose. 
Stylus staminibus paulo brevior. Stigma hemisphericum. Capsula 
2-21" metiens. Semina fertilia 1-3" longa nigrescentia angulato- 
ovata subtilissime rugulosa. 
“Scrub Box-tree” peregrinatorum, locos minus fertiles quam E. micro- 
theca occupans, absque foliis nitentibus et ramis omnino corticatis 
jam ex longinquo distinguenda. Arctius ad E. populneam approxi- 
mat. Anth. autumno. 
Huic quoque E. gracilis et E. Hookeri (E. viminalis, Hook. in Mitch. 
Trop. Austr., non Labill.) affines *. 
20. EUCALYPTUS PTYCHOCARPA. Arborea, ramulis angulatis, foliis 
magnis crassis alternis oblique lanceolatis tenui-acuminatis modice 
* Major Mitchell’s specimens have black bark, and rather large pedicelled 
flowers. Mueller's, from Burdekin River; have also black bark and small sessile 
flowers ; those from Carpentaria have pale yellow bark, ар narrow seme and 
pedicelled арене, —(A. B.) 
