346 
CONVOLVULUS Linn. Endl. gen. n. 3802. 
Meisn. gen. pag. 215. (181. 366.) 
(c. Ipomaea Jacq.) 
1. Convolvulus Pfi*eissff de Vriese. caule volubili; fo- 
liis sagittatis, elongates, lineari-lanceolatis, acutis, lobis 
posticis subbilobis, medio integerrimo; pedunculis solitariis, 
unilloris; calycibus ebracteatis, persisteiitibus. 
A(1 promontorium Cape Riche, d. 21 m. Nov. 1840. Herb. Preiss. No. 1927. 
Caulis tenuis, adpresse pilosus; folia pleraque una cum petiolo 2 1 /* 
cent, longa, raro longiora; pedunculi tenues, bracteolis duabus minutissimis, 
linearibus, adpressis instructi, sursum parum incrassati; calyx pentasepalus, 
sepalis membranaceis acutis, post anthesin auctus; corolla infundibuliformis, 
calyce duplo longior; stamina inclusa; capsula globosa, dissepimento te- 
nuissimo, pellucido, in duos loculos distincta, bivalvis, valvis membranaceis, 
acutis, loculis dispermis; semina angulata nigra. 
2. Convolvulus Hugelil de Vriese. caule volubili, fo- 
lds hastatis, oblou gis, in tegris, lobis posticis rotundatis aut 
repando-sinuatis, in basin acutam decurrentibus, lobo me- 
dio oblongo, obtuso, rarius e basi latiore sursum angustato; 
pedunculis unilloris, longissimis ; calycibus ebracteatis, post 
tlorem auctis; „floribus roseis“. 
In solo limoso hand longe a praedio rustico Maddington , ad fluvium Cunning- 
River, d. 2 m. Nov, 1839. Herb. Preiss. No. 1928. 
V aide affinis speciei praecedenti, a qua praesertim differt forma foliorum. 
Caulis ut in C. Preissii; petioli sunt tenuissimi, 2-3 cent, longi, folia 2-4 
cent, longa, rarissime juxta petiolum decurrentia; lobi laterales multas obfe- 
runt diversitates ; in aliis sunt aptcibus rotundati et versus nervurn medium 
angustati, in aliis e basi latiore in apicem tenuiorem terminati sursumque di- 
recti, vel tandem incisi; lobo medio circiter y 2 - 3 / 4 cent, lato; pedunculi fi- 
liformes , 3-5 cent, longi; bracteolis linearibus patentibus instructi; sepala 
margine membranacea ; corolla calyce duplo longiore ; stamina inclusa. 
Ovarium ovatum, vix Vfa mill, longum in stylum simplicem setiforinem, 
stiy mate non distincto, terminatum; capsula bilocularis, 2 -2y 2 mill. longa, 
iy; fere mill, transversa diametro aequans iu stylum simplicem persisten- 
tem tenuem terminata. 
3. Convolvulus adscendens de Vriese. caule adscen- 
dente ramoso^ tomentoso, ramis filiformibus; foliis lanceo- 
lato- linearibus, acutis dentatis, basi hastato- sagittatis, inci- 
sis, summis linearibus liastatis vel sagittatis, petiolis pe- 
dunculisque elongatis; calycibus pentasepalis , foliolis ova- 
tis, acutis; „coro 4 Uis albis“. 
In arenosis apertis distr. York, d. 16 m. Mart. 1839. Herb. Preiss. No. 1924. 
Caulis primum prostratus, subsimplex , sublignosus; folia radicalia basi 
valde diversa, hastata, sagittata, subpinnatifida, margine inciso; folia cau- 
lina integra, vix 2 mill, lata, fere 3 cent, longa; pedunculi bibracteolati; 
calyce foliaceo, margine membranaceo ; corolla alba, infundibuliformis, quin- 
queplicata; stylus simplex; capsula bilocularis, bivalvis, seminibus qua'tuor 
irregularibus, nigris. 
