404 LIT. SAXIFRAGACE^. (C. B. Clarke.) [Hydrangea. 



loid and greatly enlarged. Calyx-tube adnate to the ovary, limb 4-5-fid. Petals 

 4-5, valvate. Stamens 8-10, subepigynous. Ovary inferior ; styles 2 -4 ; ovules 

 very numerous, axile. Capsule 2-4-celled, dehiscing at the apex between the 

 styles. Seeds minute, shortly tailed at each end, very numerous. DISTRIB. 

 Species 33 from Java to the Himalaya and Japan (the centre of the genus), 

 Eastern N. America, Western S. America. 



The seeds of Hydrangea are described by many authors, as by the accurate Maxi- 

 mowicz, as alate. The seed in its inner coat is a perfectly smooth ellipsoid ; the 

 outer coat is a loose long cylindric sack, in the middle of which the nucleus lies ; as the 

 seed ripens the empty ends of the sack wither and contract whence results a seed 

 4 tailed at each end.' 



* Fruit truncate at top, petals falling off in a cap, styles very generally not 

 always separate. 



1. K. altissima, Wall. Tent. Fl. Nep. t. 50; leaves glabrous except 

 tufts of brown hairs in the axils of the main nerves beneath which hairs some- 

 times are continued along the \eins also, stamens 10. Wall. Cat. 439 ; DC. 

 Prodr. iv. 14 ; H.f.fy T. in Journ. Linn. Soc. ii. 75 ; Brand. For. Fl. 211. 



Temperate Himalaya from GUTIWHAI, to BHOTAN, alt, 4000-8000 ft. (10,000 ft. 

 in Sikkim, J. D. H.}, frequent. 



A spreading shrub, 8-15 ft. high, branchlets glabrous. Leaves 3-6 in., ovate- 

 lanceolate, sometimes cordate, sometimes narrow-lanceolate ; usually finely (some- 

 times more coarsely) serrate or entire except near the apex ; upper petioles often 

 winged and woolly-hairy. Corymb pilose. Flower-6rfs conical, acute, but the calyp- 

 tra-like corolla by the rapid swelling of the stamens becomes hemispheric before 

 falling. Sepals of the radiate flowers usually entire ; sometimes waved or slightly 

 toothed. Capsule subhemi spheric, compressed, broader than long. H. scandens, 

 Maxim., which includes several Japanese species, only differs by having 15 stamens 

 and rather larger buds. 



** Fruit truncate at top, petals expanding. 



2. K. robusta, H. f. fy T. in Journ. Linn. Soc. ii. 76 ; leaves large ovate 

 or cordate at base adpressedly brown-hirsute on the nerves beneath and minutely 

 tessellated with white hairs along the tesselations but not tomentose, styles nor- 

 mally 2. H. cyanema, Nutt. in Sot. Mag. t. 5038. 



Temperate Eastern Himalaya ; SIKKIM and BHOTAN, alt. 5000-8000 ft., frequent ; 

 Griffith, J. D. H., &c. 



A spreading shrub, 8-15 ft. high; branchlets hairy or pubescent. Leaves up to 

 9 in., from narrow oblong to broad cordate, the base never acute, serrate (usually 

 coarsely), upper surface with scattered hairs, and adpressedly brown pilose along the 

 nerves ; upper petioles often winged, sometimes incise-serrate and subruncinate. Corymb 

 hirsute. Sepals of the radiate flowers sharply serrate or crenate or undulate. Petals 

 and stamens blue. Styles not rarely 3. Capsules snbhemisplieric, compressed, broader 

 than long. 



VAR. Griffithii ; upper leaves narrowed into the petiole, with scattered bristly 

 hairs on the nerves beneath smooth not tesselated between them. Eastern Bhotan, 



' 3. XX. aspera, Don Prodr. 211 ; leaves long-lanceolate generally narrowed 

 into the petiole, under surface with grey woolly hair, styles normally 3. If. f. 

 $ T. in Journ. Linn. Soc. ii. 75: H. vestita var. fimbriata. Wall. Cat. 440 /3 ; 

 DC. Prodr. iv. 14. 



Temperate Himalaya, alt. 6000-7000 ft. ; SIKKIM, Lachen, J. D. H. ; NIPAL, 

 Wallich ; KTJMAON, Upper Tola, Strachey $ Winterbottom. 



Arboreous, sometimes 20 ft. high, branchlets pubescent. Leaves 6-8 by 2^3 in., 



