Book  (Oct 2001)  Page(s) 211.  Includes photo(s).

Magazine  (1879)  Page(s) 150.  
 
Clematis grewiaeflora D. C., Bot. Mag., pl. 6369.— Grande espèce grimpante de serre tempérée qu’on trouve dans l'Himalaya. Ses rameaux, ses feuilles et son inflorescence sont revêtus d’un épais duvet roussâtre. Ses feuilles sont pennées, à une ou deux paires de folioles ovales en cœur, longuement pétiolulées, bordées de grandes dents. Les fleurs sont pendantes, campanulées, brun-jaune, à sépales épais et coriaces relevés en dehors de côtes saillantes.

Magazine  (1 Jun 1878)  Page(s) tab 6369.  Includes photo(s).
 
Clematis grewiaeflora.
Native of the Himalaya Mountains.
Nat. Ord. Ranunculaceae.— Tribe Clematideae.
Genus Clematis, Linn.; (Benth. et Hook. f. Gen. Plant, vol. i. p. 3.)

CLEMATIS grewiaeflora; alte scandens, dense fulvo-tomentosa, foliis pinnatisectis, foliolis 3-5 coriaceis longe petiolulatis late ovatis v. ovato-cordatis lobulatis v. obtuse dentatis serratisve ceterum integerrimis v. denticulatis grosse reticulatis nervis subtus crassis, paniculis axillaribus plurifloris ramis ramulisque robustis divaricatis, alabastris ovoideis, floribus majusculis campanulatis dense fulvo-tomentosis, sepalis coriaceis lineari v. late-oblongis, costatis apicibus revolutis acuminatis, filamentis linearibus carpellisque longe pilosis.
C. grewiaeflora, DC. Syst. Veg. vol. i. p. 140 ; Prodr. vol. i. p. 4. Don, Prodr.Fl. Nep. p. 191. Wall. Cat. No. 4678. Hook. f. et Thoms. Flor. Ind. vol. i. p. 10. Hook.f. Fl. Brit. Ind. vol. i. p. 6.

The Himalaya mountains are the head-quarters of the genus Clematis in respect of number and variety of forms, and many of the species are of great beauty. Witness the C. montana (Plate 4061), C. graveolens (Plate 4495), C. smilacifolia (Plate 4259), C. barbellata (Plate 4794), and others not hitherto introduced, though none of them attain the size or have the beauty of colour of the Japanese species of the Florida and Fortunei set. Most of the above are perfectly hardy ; this is not the case with C. grewiaeflora, which requires a cool greenhouse, when it forms an immense rambling climber, which at Kew ascended in a few years to the gallery of the Temperate House, along the rail of which it ran for many feet, flowering profusely in early spring. The species is very nearly allied to C. Buchananiana, also a Himalayan species, under which name it was received from the Calcutta Botanic Gardens about twelve years ago. It, however, differs from that plant in its much more dense clothing of villous fulvous hairs, as also in the shape of the leaflets. It has a very wide Himalayan range, being common towards the base of the range from Kumaon to Bhotan, ascending to four thousand feet elevation. In Sikkim and East Nepal I found it flowering in November. A variety is found in Kumaon with almost white pubescence.

Descr. A lofty climber, with a stout woody trunk two inches in diameter at the base ; branchlets, leaves, and in- florescence densely clothed with tawny villous pubescence. Leaves six to eight inches long, pinnate, with one to two pairs of leaflets and a terminal one. Leaflets one to three inches long, petioled, broadly ovate or ovate-cordate, obtuse or acute, lobulate or waved, or unequally coarsely-toothed, sometimes also denticulate, strongly reticulated, dull green; petiolule slender, flexuous. Panicles axillary, broadly pyramidal, four to eight inches long, with opposite strict horizontal branches, which are themselves again trichotomously divided ; branches and pedicels very stout, densely villous ; bracts leafy, sessile, or shortly petioled. Flowers drooping, from three-fourths to one and a half inches long, broadly campanulate, tawny-yellow. Sepals very variable in breadth and length, from almost linear to broadly oblong, tips acuminate revolute, thickly coriaceous, strongly ribbed on the back. Stamens very numerous, filaments linear, silky; anthers linear. Carpels very numerous and densely packed, flattened, silky ; when ripe, with feathery awns one and a half inch long, the whole forming a head often three inches in diameter. — J. D. H.

Fig. 1, Stamens ; 2, carpels : — enlarged.