CERASTIUM. 55 



as the calyx, fruits talks about equalling the calyx. C.vulgatum 

 tim., E. B. 789. R. v. 229. C. viscosum Fries. St. erect. Fl. 

 aggregated or in dichotomous panicles, longer than their stalks. 

 ft. C. apetalum (Dum.) ; pet. 0, whole plant usually much more 

 slender. Fields and banks. A. IV. IX. 



2. C. triviale (Link) ; 1. oblong-lanceolate, sep. oblong-ovate 

 blimtish and as well as the bracts membranous at their margins 

 and glabrous tips, caps, cylindrical ascending twice as long as 

 the calyx, fruitstalks at least as long as the calyx. R. v. 229. 

 C. viscosum Sm., E. B. 790. C. vulgatum Fries. St. mostly 

 procumbent. Fl. larger than those of the last, in small terminal 

 panicles the branches of which become much elongated as the 

 fruit advances to maturity. /3. holosteoides (Fries); glabrous, the 

 sides of the stem alternately pubescent. St. 63. .9. In fields. 

 /3. Near Newcastle on Tyne ; and Perth. A. or B. IV. IX. 



ft Caps, nearly straight, pet. mostly shorter than the calyx. 



3. C. semidecandrum (L.)j 1- broadly ovate, sep. lanceolate 

 broadly membranous at their margins and tips, bracts with 

 their upper half membranous, caps, cylindrical slightly inflated 

 erect longer than the calyx, fruitstalks longer than the calyx at 

 first reflexed afterwards erect. E. B. 1630. R. v. 228. St. erect 

 or decumbent, downy, sometimes viscid. Distinguished by its 

 half-membranous bracts. Common in dry places. A. IV. V. 



4. C. pumilum (Curt.) ; I. ovate or oblong, sep. lanceolate acute 

 with their tips and margins narrowly membranous, bracts herba- 

 ceous with an extremely narrow membranous margin, caps, slightly 

 curved upwards longer than the calyx, fruitstalks short curved 

 at the top declining from their base ultimately erect. Curt. Lond. 

 ii. 92. Viscid. St. branched at the root, afterwards nearly 

 simple, prostrate, or ascending. Fl. in small terminal dichoto- 

 mous corymbs. The curve at the top of the fruitstalks is rather 

 doubtful ; my authentic specimens and the figure do not clearly 

 show its presence or absence. I know but little of this plant. 

 Near Croydon, Surrey. Mr. Dickson ! A. V. ? E. 



5. C. tetrandrum (Curt.) ; 1. oval or oblong, sep. lanceolate 

 acute their tips and margins narrowly membranous, bracts her- 

 baceous, caps, a little exceeding the cal. straight, fruitstalks 2 4 

 times as long as the caps, straight ultimately erect. E. B. 166. 

 Curt. Lond. ii. 93. C. pumilum Gren. C. atrovirens and C. tetran- 

 drum Bab. Viscid. St. repeatedly forked from the very base 

 with a fl. in each fork. Bracts very broad, oval, rather acute or 

 apiculate, or nearly round, leaflike. Walls and sandy places 

 near the sea. A. V. VII. 



