52 CARYOPHYLLEiE. 
lanceolate, acute, rigid. Sep. with broad white membranous 
margins, acute. The whole plant glaucous. — Dry gravelly and 
sandy places. A. V. VI. E. 
16. Cerastium Linn. 
* Root fibrous sca7-cely more than annual. Pet. not longer than 
the calyx. 
t Caps, curved, pet. about as long as the calyx. 
1. C. ylomeraium (Thuil.) ; 1. ovate, sep. lanceolate acute with 
a narrow membranous margin and as well as the herbaceous bracts 
hairy throughout, caps, cylindrical ascending twice as long as the 
calyx, fruitstalks about as long as the calyx. — Koch in St. 63. 13. 
C. vulgatum Sm. E. B. 789. R. 4790. C. viscosum Fries, Gaud. 
— St. erect. Fl. aggregated or in dichotomous panicles, longer 
than their stalks. A slender form of this plant without petals 
has been noticed by Mr. Borrer at Reigate, Surrey. — Fields and 
banks. A. IV.— IX. 
2. C. triviale (Link) ; 1. oblong-lanceolate, sep. oblong-ovate 
bluntish and as well as the bracts membranous at their margins and 
glabrous apices, caps, cylindrical ascending twice as long as the 
calyx, fruitstalks as long as the calyx. — R. 4972. Koch in St. 63. 
8. 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. — f3. holosteoides (Fries) ; glabrous, 
the sides of the stem alternately pubescent, fl. subumbellate. St. 
63. 9. — In fields, fi. Red Heugh near Gateshead. Mr. Robert- 
son. Kinfauns near Perth. Mr. J. Gorrie. 
ft Caps, nearly straight, pet. shorter than the calyx. 
3. C. semidecandrum (L.) ; 1. broadly ovate, sep. lanceolate 
broadly membranous at their margins and apices, 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. 4968. — St. erect or 
decumbent, downy, sometimes viscid. Distinguished by its half 
membranous bracts. — Common in dry places. A. IV. V. 
4. C. atrovirens (Bab.) ; I. ovate or oblong slightly pointed, 
sep. lanceolate acute with their apex and margins narrowly mem- 
branous, bracts herbaceous with a very narrow membranous margin, 
caps, longer than the calyx, fruitstalks longer than the calyx erect 
or ascending. — Bab. in Mag. Zool. Bot. ii. t. 9- — Pet. scarcely 
shorter than the calyx or half as long. Fruitstalks twice, or 
3 — 4 times, as long as the calyx, sometimes patent, but never (I 
believe) reflexed. St. repeatedly forked, bearing a flower in each 
fork. The membranous margin of the bracts is sometimes scarcely 
