﻿54 DIPSACEiE. DiPSACTjs. 



investing the ovary and fruit. Tube of the calyx coherent with the ovary; 

 the limb cup-shaped or discoid. Limb of the corolla 4-cleft. Stamens 4. 



Middle Asia), hairy or prickly. Leaves opposite, often connate at the base, 

 undivided or laciniate. Heads large, oblong or roundish ; the expansion of 

 the flowers commencing about the middle and proceeding in opposite direc- 



1. D. sylvestns (Mill.) : stem, with the midrib of the leaves and involucre, 

 prickly, angled ; leaves lanceolate-oblong, crenate-toothed ; the uppermost 

 lanceolate, mostly entire ; leaves of the involucre long and slender, pungent, 

 curved upwards, longer than the oblong head ; chaff of the receptacle taper- 

 ing into a long setaceous flexible awn-like appendage, with a straight point.— 

 Mill. diet. no. 2 ; Jacq. Jl. Austr. t. 402 ; FL Dan. t. 965 ; Engl. hot. t. 

 1032 ; Pursh, Ji. 1. p. 96 ; Torr. ! fl. 1. p. 164 ; Darlingt. ! Jl. Cest. 



'. Ftdlonum, the Fuller's Teasel, i 



Order LXXVI. COMPOSITiE. Vaill. ; Linn. : Adans. 



Synantherae, Rich. — Syngenesia, Linn, sex. iysi.— Compositiflorae, Gartn. 

 Flowers collected into a dense head (compound flower of the older 

 authors) upon a common receptacle, surrounded by an involucre. 

 Tube of the calyx coherent with the ovary and undistinguishable from 

 it ; the limb (called pappus) composed of bristles or scales, &c., or 

 very rarely foliaceous, often wanting or reduced to a margin. Corolla 

 composed of mostly 5 united petals ; either ligulate or tubular, in the 

 latter case with a valvate testivation ; the tube generally furnished 

 with b nerves (or more properly 10 united in pairs), which extend 

 from the base to the sinuses, where they divide, a branch coursing 

 along or near each margin to the apex of the lobes. Stamens as 

 many as the lobes of the corolla and alternate with them : the fila- 

 ments (distinct or united above) inserted into the tube : anthers linear, 

 coherent by their margins into a cylinder {syngenesious). Ovary 1- 

 celled, containing a single erect anatropous ovule: style (usually 

 undivided in the sterile flowers) 2.cleft ; the lobes or branches (incor- 

 rectly called stigmas) various in form, mostly flattish within, often 

 furnished with collecting hairs ; the proper stigmas occupying their 

 inner margins, in the form of glandular slightly prominent lines. 

 Fruit an indehiscent dry 1 -seeded pericarp (achenium), crowned with 



