CupuUferce."] OXL. CUPULIFERJS. (J. D. Hooker.) 599 



Involucre of many imbricating appressed bracts 3. QUEECUS. 



I nvolucrc armed with clusters of spines or tubercles 4. CASTANOPSIS. 



Tribe III. Coryleee. Male spikes pendulous ; perianth ; stamens 

 included between 2-bracteoles ; anthers hairy at the tips. Fern. fl. in pairs 

 in the axils of the leafy or coriaceous bracts that enlarge greatly in fruit ; 

 ovary imperfectly 2-celled, cells 1-ovuled. 



Fern, spike minute, few-fld. ; bracts minute, greatly enlarged and 



convolute in fruit 5. CoRYLTTS. 



Fern, spike of many leafy veined bracts, wbich are flat and_elongated 



in fruit , . . . . \ .6. CABPINUS. 



1. BETUXiA, Tourn. 



Trees or shrubs, monoecious. Leaves alternate,. deciduous, penninerved, 

 toothed or serrate. Malefl. in pendulous spikes; bracts peltate, with 3 bi- 

 bracteolate flowers ; sepals 2-4 ; stamens 2, filaments forked separating 

 the anther-cells. Fein. fl. in erect or pendulous spikes ; bracts imbricate, 

 bracteoles 2 adnate to the bract which thus appears 3-lobed ; perianth ; 

 ovary compressed, 2-celled, cells 1-ovuled ; styles 2, slender, stigmas ter- 

 minal. Fruit a spike of lenticular winged or margined nuts ; cotyledons 

 flat. Species about 25, 1ST. temp. Arctic, and Andean. 



1. B. utilis, Don Prodr. 58; shoots and young leaves pubescent, 

 leaves ovate acuminate irregularly serrate glandular beneath bracts of male 

 spikes stipitate ; fern, spike stout subsolitary, bracts pubescent broader 

 than the wings of the nut. B. Bhojpattra, Wall. PL As. Rar. ii. 7 ; 

 Cat. 2792 ; Lindl. Sot. Reg. 1840, Misc. 73 ; Brand. For. Fl. 437 ; Regel 

 Monogr. 58, t. 6, f. 13-19; t. 13, f. 7-14 ; DC. Prodr. xvi. ii. 177 ; Gamble 

 Man. Ind. Tinib. 372. B. Jacquemontii, Spach. in Ami. Mus. Ser. 2, xv. 

 189, and in Jacquem. Voy. Sot. t. 158 ; Regel in DC. 1. c. 178. B. Bhoj- 

 pattra, var. e. Jacquemontii, Regel. Monogr. 60, t. 6, f. 60; DC. I. c. 177. 

 B. castanse, Herb. Ham. 



TEMPERATE HIMALAYA and WESTERN TIBET ; from Kashmir, alt. 7-12,000 ft., 

 to Sikkim, alt. 9-14,000 ft.,, and Bhotan. DISTBIB. Japan, Affghanistan. 



A tree, 40-50 ft., or shrub at high altitudes ; bark peeling in horizontal flakes. 

 Leaves 2-3 in. ; nerves 8-12 pairs ; petiole ^- in. Bracts of male ciliate, stipes 

 scaly; anthers glabrous except the tip. Fern, spikes 1-2 in., by -- in. diam. ; 

 wings of nut equalling or narrower than the nucleus. I see no reason for abandoning 

 Don's name of utilis, as no one doubts its belonging to this plant ; the barbarous name 

 "Bhojpattra" is common to this and B. alnoides. Regel (in DC.} cites B. Jac- 

 quemontii as a species, and as a var. of B. Bhojpattra. 



2. B. alnoides, Ham. in Don Prodr. 58 ; shoots and young leaves 

 tomentose, leaves ovate or ovate-oblong or -lanceolate acuminate unequally 

 doubly or trebly often cuspidately serrate pubescent beneath when young, 

 glandular when old, spikes slender panicled, bracts of fern, narrower than 

 the very broad wings of the nut. B. acuminata, Wall. PI. As. Rar. ii. 7 

 109, Cat. 2793; Brand. For. Fl. 458, t. 56 ; Kurz For. Fl. ii. 476 ; Gamble 

 Man. Ind. Timb. 372 ; Regel Monogr. 71 ; DC: Prodr. xvi. i. 179. B. ni- 



Endl. Gen. PI. Suppl. iv. ii. 20; Regel in DC. I. c. Betulaster cylinclro- 



