Mydrocotyle.] Lxx. UMBfiLLiFEEiE, (0. B. Clarke.) 069 



being in other respects very uniform. Some of the hill examples have shining 

 glabrous subserrate leaves, the peduncles f in. ; other plains' examples closely pro- 

 cumbent on mud are villous with sessile umbels. H. hvrta, R. Br. differs (if at all) 

 by its laxly hairy peduncles : see Benth. Fl. Austral, iii. 340, as to Var. pusilla only. 

 S. sibthorpioidee, Lamk. ; DC. Frodr. I. c. 66, which extends throughout South- 

 Eastern Asia and Japan, only differs (from the form mtidtila) by the rather larger 

 leaves and longer peduncles. 



Sechon ll. Centella. Petals obtuse, imbricate. Secondary ridges as 

 distinct as the primary. Pericarp much thickened. 



5.. K. aslatlca, Linn. ; Roxh. Hart. Beng. 81, Fl. Ind. ii. 88 ; leaves 

 orbicnlaivremform entire crenate or lobulate, peduncle short, bracts small ovate 

 embracing the flowers, pedicels 0, umbel 3-6-flowered. Wall. Cat. 560 ; BC. 

 Prodr. iv. 62; W. 4r -4. Prodr. 366; Wight Ic. t. 665; Dalz. <j- Gibs. Pomh. 

 Fl. 105 ; Sure in Jmum. As. Soc. 1877, pt. ii. 113. H. Wightiana, Wall. Cat. 

 7220. H. lurida, Hance in Walp. Ann. li. 690.— JZAeerfe Hort. Mai. x. t. 46. 



Throughout India, alt._ 0-2000 ft. ; from the Himalata to Ceylon and Malacca ; 

 frequent. — Disteib. Tropical and subtropical regions. 



Leaves J-2 J in. diam., usually glabrous or nearly so ; petiole pubescent or glabrous. 

 Peduncles about J in., often 2-3-nate, laxly pubescent or glabrous ; bracts ^-§- in.; 

 not scattered among the pedicels (as in Mi-HydroeotyU and in AraliaceiB). Fruit 

 4-^ in. Carpels oblong, subeylindric, curved, sUghtly compressed^ much longer than 

 broad, reticulate-rugose, often crowned by the subpersistent petals, each with 9 cur- 

 vilinear subsimilar ridges, and 2 within the commissure; pericarp thickened, 

 woody, white. Seed compressed laterally. — In this species it seems to be the endocarp 

 that is so greatly thickened, and that is aduate to the exocarp, thus invalidating one 

 «f the most uniform distinctions between UmbeUiferie and A.raliaoe<s (see Gen. Fl. 

 i. 861). 



2. EXtYNGXVnX, Linn. 



Spineacent, glabrous, erect, perennial herbs (the Indian species). Leaves 

 spinous-toothed, entire lobed or dissected. Flowers in simple heads, each brae- 

 teolate; bracts stellate, spinulose (in Indian species). Calyx-tube covered vfith 

 ascending hyaline scales ; teeth rigid, acute. Petals white, narrow, erect, 

 «marginate, scarcely imbricate. Fruit ellipsoid, nearly cylindric : carpels dor- 

 sally subcompressed, subconcave on the inner face ; primary ridges obtuse not 

 prominent, secondary ; vittae in the primary ridges inconspicuous or 0, with 

 «ome very slender scattered in the endocarp; carpophore 0. Seed semi-teiete, 

 •doisally subcompressed, subconcave on the inner face. — Disibib. Species 100, 

 temperate and tropical ; plentiful in Western Asia. 



1. E. caeruleum, Bieb. Fl'. Taur. Caue. i. 200, excl. syn. ; radical leaves 

 long-petioled cordate-oblong undivided crenate not spintilose, upper cauline 

 sessile palmately divided into lanceolate spinulose segments, Boiss. Fl. Orient. 

 ii. 823. — E. planum, Lindl. in Royle III. 232, not of Imn. 



Eashmie, alt. 6000-6000 ft.; Falconer, T. Thomson, Levinge. — Distbib. Cabul, 

 Persia, Turkestan. 



Stems 2-3 ft., erect, undivided below, corymbose and often bluish above. Eadical 

 haves 5 by 1 f in., petiole 2-6 in. ; lower cauline often similar smaller with shorter 

 petioles, but more often subsessile, elliptic, acute, undivided, serrate or subspinulose. . 

 Bracts S-6, 1 in., linear, with a few spines on the margins, sometimes short exterior 

 spines alternating with them; braeteoles linear, spinulose, simple, exceeding the 

 flowers; a few (in the outermost row but one) sometimes spinous, subtrifld. 

 ^alyx-tube densely scaly; teeth lanceolate-subulate, spinescent. Fruit ^ in. — This 



