'^ " I 



434 



LVi. HALORAGEiE. (C. B. Clarke.) [Myriophyllum 



Leaves in the Indian examples sometimes whorled, more commonly in tufts of 1-3, 

 eacli tuft placed irregularly round the stem. The Australian M, varimfolium has the 

 leaves usually whorled ; but the whorls get broken and the Australian examples be- 

 come thus exactly like the Indian ; the fruit is altogether the same.— The correct 

 name of this plant is open to much question. De CandoUe's is the oldest, but the 

 accompanying description was drawn up to fit Hottonia sessHiflora, Vahl Syrnb.n. 

 36 which probably was something altogether different ; then a Myrw'phyllum is dis- 

 covered in India which De Candolle's description very fairly fits, and Hohenacker 

 and others apply it to the CandoUean name. * \ 



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5. CALX-XTItZCBE, Unn, 



Glabrous slender annual herbs growing in moist places, or their braucnes 

 floating or submerged. Leaves opposite, linear- or ohovate-spathnlate, entire, tne 

 upper ones often rosulate. Flowers minute, axillary , unisexual^ usually moncecious, 

 solitary, or sometimes one male and one female in the same axil simulatmg a 

 hermaphrodite flower ; achlamydeoiis ; bracteoles white^ membranous, l^^^'"' 

 oblong, very caducous. Male : stamen 1. Fekale: ovary 4-ridged ^*'"^^/' 

 styles 2, elongate, stigmatose their whole length ; ovules solitary in each cell, 

 pendulous. Fimit coriaceous, indehiscent, 4-seeded, the 4 carpels at lengtn 

 separating. — Distrib. Species 1 or 2 found almost all over the globe ; but some 

 authors allow 10 or 20 species. . 



[The distribution of such critical species as these Calliiriches cannot be safely 

 stated; there are examples collected in Sikkim, alt. 8000-9000 ft., by Sir J. A'- 

 Hooker which are probably C, verna (and not C, stagnalis), but they show no fruit.J 



i' f 



1. C. stagrnalis, Scon. Fl. Camiol. ii. 251 ; leaves obovate-spatliulate, 



styles subpersistent, fruit suborbicukr the edges acute keeled but hardly wingea. 



Koch Spi. Fl. Germ. 212 ; mqelm. Monoqr. Callitrich. 68. 0. Wightiana, 



Wall. Cat. 7008 ; W. ^ A. P,-odr. 339 ; Wiffht Ic. 1947 ; Miq. Fl. Ind. If- 



i. Dt. i. 635. 



Indian mountains from the HistAiATA, alt. 5000-10,000 ft., to the Deccan, aU- 

 7000 ft. Ceylon, alt. 6000 ft., Thwaifes.—BisTRm. Europe. North Asia, Iropiw 

 Africa, Malaya, Australia and New Zealand. 



2. C. verna, Linn. ; Koch Syn. Fl. Germ. 212 ; leaves ohlong-spathulate, 

 fruit longer than broad the edges not keeled. Hegelm. Mmogr. Calhtricn. oo. 



Temtpeeate Western Himalaya, alt. 5000-8000 ft., Edgeworth; Ka^^^^ 

 alt. 7000 ft., C. B. Clarke.— DisTRm. Europe, Cold and temperate Asia and ^^\ 

 America. 



Order LVII. 



(By 



Trees 



11 V 



Leaves opposite, stipulate (except Anisophyllea) , "^^^^-^ 

 vL.ii»ueuus, {fiaoroufl ; stipules interpetiolar, very caducous. -^^''"'^*t,* -ts o^ 

 usually bisexual, surrounded at the base with connate or cupuliform .W» a . 



ovary (except 5/^W^'"^^^^ 



4-14-lobed 



>^-»^ xii uumoer to lue sepais, entire emarginate z-na. or jLm;ci.o^- , g^ 



usually twice the number of petals, in pairs opposite to and embracea oy . 

 Tarely indefinite {Kanddia) ; anthers 2-celled, rarely multi-locellflte (-R^/^^f j, 

 Oi;ary from 5- to 1-ceUed by solution of the septa; styles connate (.e^CT , 



. . y^ 



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