UMBELLIFERjE. 



237 



5 MICROPLEU'RA. Margin of calyx obsolete. Petals equal, 

 acute. Fruit deeply 2-lobed at the base, and emarginate at the 

 apex ; mericarps obliquely ovate, 7-ribbed ; ribs curvi-linear, 

 ventricose at the base, marginal 2 straight. Commissure narrow. 



6 DIDI'SCUS. Margin of calyx obsolete. Petals oval, blunt- 

 ish, imbricate in aestivation (f. 57. c.). Fruit didymous, emar- 

 ginate at the base. Mericarps rough from pilose strigae, 5- 

 ribbed: 2 middle ribs approximating the commissure. Invo- 

 lucrum of many leaves which are concrete at the base (f. 57. a.). 



7 TRACHYME'NE. Margin of calyx 5-toothed. Petals ellip- 

 tic, acutish, somewhat valvate in aestivation. Fruit didymous. 

 Mericarps gibbously convex, 5-ribbed : the 3 dorsal ribs and 

 the furrows between them muricated : and the 2 lateral ones 

 marginating. Umbels compound. Involucrum of many leaves. 



8 ASTROTRICHA. Margin of calyx hardly 5-toothed. Petals 

 oval, acutish, permanent (f. 58. ft.), velvety on the outside from 

 stellate down. Styles thickened at the base (f. 58. c.). Mericarps 

 contracted at the commissure, having 3 primary dorsal ribs, and 

 2 acute nearly obsolete marginating ones, and 4 secondary ones. 

 Commissure furnished with 2 vittae, which are covered by a 

 spongy pellicle, but none in the furrows. Involucrum of a few 

 linear leaves. 



9 XANTHOSIA. Margin of calyx 5-lobed. Petals stipitate, 

 oval, cuspidate and replicate at the apex. Styles filiform, rising 

 from the base of the stylopodium on the inside. Fruit com- 

 pressed. Mericarps contracted at the commissure, with 7-9 

 filiform ribs : 2 lateral ribs marginating. 



10 BOWLE'SIA. Margin of calyx 5-toothed ; tube compres- 

 sedly somewhat tetragonal. Petals elliptic, entire, acute. Fruit 

 ovate, much contracted at the raphis, turgid, somewhat tetra- 

 gonal, flattish on both sides at the back. Mericarps marked with 

 an oval impression on the back, having 5 obsolete ribs : 2 lateral 

 ribs flat, seated in the commissure. 



1 1 FRAGOSA. Margin of calyx 5-toothed, permanent. Pe- 

 tals oval. Fruit didymous. Mericarps somewhat compressed 

 from the back, and contracted at the commissure, having filiform 

 ribs. Involucrum equal in length to the pedicels. 



12 AZORE'LLA. Margin of calyx 5-toothed, permanent. 

 Petals oval. Fruit ovate, contracted at the raphis, and rather 

 compressed from the back. Mericarps semi-ovate, having the ribs 

 hardly evident. Involucrum about equal in length to the pe- 

 dicels. 



1 3 PECTOPHY'TUM. Margin of calyx entire. Petals unequal, 

 with an acute inflexed point. Fruit ovate-elliptic ; mericarps 

 rather convex on the back, semi-oval, having 5 filiform ribs ; 

 commissure rlattish. Flowers in crowded fascicles at the tops 

 of the branches, solitary in the axils of the bracteas. 



TRIBE II. 



MuLiNEjE. Mericarps contracted at the commissure, flat or 

 flattish on the back, without mttce, hence the fruit is square or 

 parallelly biscutate. Petals entire. 



14 BOLAX. Margin of calyx entire. Petals oval. Fruit 

 tetragonal ; mericarps with 5 nerve-formed ribs, 1 dorsal, and 



the 2 middle ones form the corners of the angles of the fruit, and 

 the 2 inner ones are filiform ; commissure very narrow. Invo- 

 lucrum of 4 leaves, equal in length to the pedicels. 



15 MULINUM. Margin of calyx 5-toothed, permanent. Pe- 

 tals oval-oblong, acute. Fruit 4-winged ; mericarps furnished 

 with 5 ribs : middle one dorsal : 2 lateral ones nerve-formed : 

 2 intermediate ones expanded into lateral ample wings. Invo- 

 lucrum of many leaves, shorter than the pedicels. 



16 LARE V TIA. Margin of calyx 5-toothed. Petals ovate, 

 entire. Fruit elliptic, square, flatly compressed from the back ; 

 mericarps lenticular, with dorsal ribs and 2 lateral marginal ones, 

 destitute of vittae. Seed flat. 



17 DRU'SA. Margin of calyx entire. Petals oval. Meri- 

 carps furnished with 5 ribs : the dorsal one and the 2 inner ones 

 linear and hardly prominent : but the 2 intermediate ones are 

 drawn out into marginal wings, which are repandly sinuated, 

 having the angles expanding in a stellate tuft of uncinate spi- 

 nules. Involucrum wanting. 



18 HUANA'CA. Margin of calyx hardly 5-toothed, Petals 

 lanceolate. Fruit ovate, acutish ; mericarps flat and furrowed 

 on the inside, but convex on the back, and furnished with 3 

 elevated lines. Carpophore bifid. Involucrum of many leaves. 



19 DIPOSIS. Margin of calyx bluntly 5-toothed. Petals oval. 

 Fruit orbicular, constituting 2 parallel disks (f. 55. A. 6.) ; commis- 

 sure narrow ; mericarps having 5 ribs : dorsal one filiform : 2 

 lateral ones hidden : and the 2 middle ones girding the disk ; 

 furrows broad and flat. Umbels compound. 



20 SPANA'NTHE. Margin of calyx 5-toothed. Petals ellip- 

 tic, acutish, with a straight point. Fruit ovate, much compressed 

 at the rachis ; mericarps having 5 slender equal ribs : 3 inter- 

 mediate ones dorsal : and the 2 lateral ones seated in the flat 

 commissure. Umbels rather compound. Involucrum of many 

 leaves. 



21 HOMALOCA'RPUS. Margin of calyx 5-toothed ; teeth su- 

 bulate. Petals ovate, concave. Fruit roundish-ovate; meri- 

 carps having 5 filiform ribs, hidden in the substance of the peri- 

 carp, 1 dorsal : 2 lateral ones near the rachis : 2 middle ones 

 forming the angles. 



22 POZOA. Margin of calyx 5-toothed, permanent. Fruit 

 prismatic, tetragonal, 5-ribbed, emarginate at the apex ; meri- 

 carps concave and channelled on the back ; ribs lateral, dense, 

 straight. Involucrum crenately lobed, obsoletely toothed. 



23 ASTERI'SCIUM. Calyx 5-toothed, permanent ; teeth ovate. 

 Petals emarginate, with an inflexed point and a callous recess. 

 Fruit compressed, tetragonally prismatic ; mericarps with 5 ribs : 

 the 2 intermediate ribs expanded into wings : the carinal one and 

 the 2 placed near the raphis stripe-formed ; commissure very 

 narrow. Involucrum of many leaves. 



TRIBE III. 



SANICU'LE^E. Fruit ovate-globose. Mericarps destitute of vit- 

 tce, with 5 primary ribs ; secondary ribs manting or obliterated 

 by being covered rvith scales. Petals erect, emarginate, from 

 being bent back from the middle by a point. 



