368 e — 5. VLEs. ©  Prvcnonis, 
1136. (1) H. Heyneanum (DC.:) annual, glabrous: stem erect, slightly 
branched : leaves long-petioled, ternate ; segments shortly petioled, lanceo- 
late, acuminated, or tripartite, toothed : umbels long-peduncled, without in- 
voluere or involucels ; the rays 5-20, elongated ; partial umbels 5-8-flowered: 
fruit orbicular, somewhat didymous, glabrous.— DC. prod. 4. p. 106 ; Wight ! 
cat. n. 1190.— Pimpinella Heyneana, Wall.! L. n. 566.—Apium trifoliatum, 
Roxb. fl. Ind. 2. p. 96.—Seseli Zeylanicum, herb. Madr. ! Circars ; Rox- 
burgh. Courtallum ; Klein. Mysore; Heyne. 
We have it also from Ceylon. Perhaps we ought to have restored the spe- 
cific appellation given by Roxburgh ; and we have only been prevented from 
doing so by there being already an H. trifoliatum in De Candolle's prodromus, 
founded on Pimp. trifoliata, Wall. L. n. 565. 
V. PTYCHOTIS. Koch; DC. 
Margin of the calyx 5-toothed.  Petals obovate, bifid or emarginate, 
with a long inflexed point proceeding: from the sinus, and cohering with the 
middle vein. Fruit compressed, ovate or oblong. Mericarps with 5 equal 
filiform primary ridges, the lateral ones marginal. Interstices with single vit- 
te. Carpophore bipartite. Seed terete or gibbously convex, flattish in front. 
—Annual or biennial plants. Cauline leaves usually cut into numerous Ca- 
pillary segments. Umbels compound: involucre wanting or few-leaved ; 
involucel of several leaves. Flowers white. 
De Candolle supposes that the petals have a transverse plait, from the middle of 
which, and not from the apex of the petal, the small appendage or adnate portion 18 
produced : this is certainly not the case in any species we have examined ; nor, n-, 
deed, is there any essential difference between the structure of the petals in this ge- 
nus and in many others of the order. The inflexed and adnate point y iens to 
us to proceed from the sinus; or rather, we may say, it is by the petal being ex- 
tremely introflexed, that the deep sinus is formed. By its adhering to and contract- 
ing the middle vein, the lower half of the petal is concave, while the two lobes on 
each side of the sinus are flat or slightly recurved; and it is the — between 
the concave and flat portion, which we presume has been mistaken for a plait. 
1137. (1) P. Ajowan (DC.:) stem erect, dichotomous: leaves few, cut into 
numerous linear or filiform segments ; the uppermost simply pinnate: um 
with 7-9 rays: involucre few-leaved ; leaflets linear, entire: fruit strongly 
ribbed, covered with small blunt tubercles.— D C. prod. 4. p. 109 ; Wight: 
cat. n. 1191.—Ligusticum Ajowan, Flem.; Roxb. fl. Ind. 2. p. 91; in E. Lo. 
mus. tab. 1042.— Athamantha Adjowan, Wall. L. n. 572. 
VI. PINPINELLA. Linn.; Koch.; DC. 
Margin of the calyx obsolete. Petals obovate, emarginate, with the point - 
long and inflexed. Fruit contracted laterally, ovate. Stylopodium cushion- - 
shaped. Styles generally reflexed, sometimes straight, somewhat capitate at 
the apex. Mericarps with 5 equal filiform ridges, the lateral ones marginal. 
Interstices with many vittee. Carpophore bifid. Seed gibbous-convex, flat- 
tish in front.—Herbaceous plants with simple roots. Radical leaves either 
pinnated with the segments usually roundish and toothed, or rarely ag®® : 
pinnated, or entire: stem leaves more finely divided. Umbels general anc — 
partial with many rays, without involueres or involucels, or very rarely W 2 
them. Petals white, more rarely reddish or yellow. ae 
. P. diversifolia, DC., or Heracleum diversifolium, Wall. L. n. 574, is, accordi bots 
specimens from Dr Wallich, a true species of Heracleum, to De 
6th section, and not apparently distinet from H. ule DC s : 
Candolles —— 
