160 
37. UMBELLIFEK^. 
3. Parnas'sia Linn. 
1. p. palus'tris (L.) ; petal-like scales 9 — 13, pet. with a 
short claw, radical 1. cordate stalked, st.-l. clasping. — E. £. 82. — 
Pet. white, veined. Glands of the scales yellow. L. mostly- 
radical. St. 8 — 10 in. high. — Wet and boggy ground. P. VIII. 
— X. E. S. I. 
B. Petals and stamens epigynous, inserted round an epigynous 
disk. Cal.-tube adnate to the ovary. 
Order XXXVII. UMBELLIFER.E. 
Cal. 5-toothed or entire, adherent to the ovary, limb often 
scarcely visible. Pet. 5, usually flexed at the point. Stara. 
5, inserted with the pet. round the stylopode. Ovary 2-celled, 
crowned with a double fleshy disk (stylopode). Styles 2. Fr. 
consisting of 2 carpels (mericarps) adhering by their face (com- 
missure) to a common axis from which they ultimately separate 
and become pendulous. Seed solitary, pendulous. Albumen 
horny. — Inflorescence umbellate. ^Estivation imbricate, except 
in Hydrocolyle and Crithmmn. — Each carpel has 5 primary, and 
often 4 intermediate secondary ridges ; and in the substance of 
the pericarp are usually linear receptacles of oil (vittse or stripes) 
under the ridges or the spaces between them. These parts are 
sometimes either wanting or only slightly apparent. The 
stripes are " solitary '' when there is onljr one in each space 
between the primary ridge's, and " 2, 3, <fec. together when 2, 
3, or more occur in each space. They and the ridges are best 
seen by making a horizontal section of the fruit. 
Suborder I. ORTHOSPERM^E. 
Sutural side of seed flat. Umbels various. 
* Umbels imperfect or simple ; no fr. -stripes. " jVo carpophore" 
Tribe I. HYDROCOTYLEjE. Fr. laterally flattened, its 
back even or acute. Umbel irregular or imperfect. 
1. Hydrocotyle. Cal.' inconspicuous. Pet. ovate entire. 
Fr. of 2 flat nearly orbicular carpels, each with 5 Aliform 
ridges, of which the dorsal and 2 lateral are often incon- 
spicuous ; the 2 others arched. Stripes 0. Commissure 
linear. 
' By calyx, throughout this Order, the free margin is intended. 
I 
