Monographie der Gattung Didiscus (DC). 37 



Southivest-Australia'. leg. Büeges 1860 sine statione indicata. 

 South- Australia: Near Cudnaka leg. F. Müeller 1851. 



Observatio. 



In Fragm. Phyt. Austr. IX. 46 (1875) nennt ausserdem F. 

 MüELLEB, folgende Standorte: pr. montes Flindersii et lacum Fromei 

 (F. Müeller), ad moutem Bebbii (Julia Wells), pr. Champion-bay 

 (Grat), ad partem occid. sinus Great-Bight (Maxwell). — Spencer- 

 Moore gibt in seiner „Flora of Interior of Western Australia" (Journ. 

 Line. See. XXXIV., 1899) p. 194 noch den Standort Gibraltar an. 



B. Polyanthon. 



1. Microcarpon. 



^ Sp. 5. D. Croninianus F. Müeller. 



D. Croninianus F. Müeller in Victor. Natural. VI. (January 1895) 

 144 et in Bot. Zentralbl. LXIL 29 et 93 (1895). 



Trachymene Croniniana F. Müeller ibidem! 



Annuus, caulibus humilibus tantum circa 10 — 15 cm 

 altis (e descriptione usque altitudinem 20 cm attingentibus) tenu- 

 iter glauco-pruinosis rigidis sat crassis pluribus ex eadem 

 radice sed minus ramosis setis sparsis patentibus brevioribus hispidis, 

 foliis infimis plurimis sub flore subsiccis caeteris rigidiusculis minori- 

 bus (maximis haud plus 5 cm longis) in petiolum sat longum cuneato- 

 angustatis saepius ut caule sparse setoso-hispidis interdum fere ad 

 basin 3 partitis, segmentis angustioribus saepius profunde incisis 

 interdum tantum ad Y2 — Vs 3 sectis, foliis caulinis superioribus paucis 

 in segmenta pauca angusta divisis, umbellarum pedunculis sat 

 longis terminalibus et e foliorum sinu egredientibus, umbellis multi- 

 floris mediocribus sub flore circa 1 cm diametro, pedicellis sat longis 

 glabris, involucri polyphylli foliolis basi breviter connatis glabris pe- 

 dicellis sub flore plerumque aequilongis sub fructu conspicue brevi- 

 oribus calyce indistincto, petalis parvis obtusis albis, carpello uno 

 plerumque abortivo sed interdum utroque fertili, mericarpiis 

 diminutis in fructibus haud perfecte matui-is c. 1^/2 mm 

 longis et tantum c. 1 mm latis subirregulariter alis 

 brevibus pluribus rugosis flexuosis inst r ucti s, plerum- 

 que in facie mericarpii utraque alis 4 subparallelis juvenilibus angus- 



