184 KOSACE^E. RUBUS. 



HOLODISCUS. 



acute, smooth and shining above, sparingly pubescent beneath, 1-2 inches 

 long or more, persistent, the veins beneath and the petioles armed with 

 recurved prickles; stipules a pair of ovate acuminate lacerate-serrate leaf- 

 lets, contracted at base, situated On the petiole a line or more from the 

 base : peduncles short, one to few-flowered ; flowers perfect; sepals nearly 

 distinct, broadly lanceolate, acuminate, 3-4 lines long, ciliate and more or 

 less pubescent : petals narrowly lanceolate, acuminate, longer than the 

 sepals ; carpels few, pubescent, those that mature becoming large red juicy 

 drupelets ; uchenes flattish, a line long, conspicuously pitted. In forests, 

 Washington to Northern Crlifornia and Idaho. 



R. ursiiius Cham. & Schlecht. Linnaea ii, 11. Stems slender, trail- 

 ing, 520 feet long, armed with straight rather slender prickles, somewhat 

 glaucous: leaves deciduous, 3-foliolate, rarely 5-foliolate, often simple and 

 3-lobed on the flowering branches ; leaflets ovate to oblong coarsely and 

 doubly serrate, more or less pubescent or tomentose, veins, petioles, pe- 

 duncles and calyx more or less armed with prickles ; stipules oblanceolate 

 to linear, often long and toothed : flowers dioecious, in small cymes termi- 

 nating the numerous lateral branchlets or leafy peduncles ; calyx-lobes 

 ovate -lanceolate, acuminate or often foliaceously tipped, densely tomen- 

 tose inside, glandular outside ; petals of the staminate flowers lanceolate 

 to obovate, unguiculate, 6-8 lines long, much exceeding the calyx; of the 

 pistilate smaller, but little if at all exceeding the calyx ; carpels numerous, 

 glabrous : fruit oblong to ovoid, black, pleasa.it flavored : achones 

 small, flattish, reticulated. Common in wooded districts, Alaska to Cali- 

 fornia. 



Tribe 5. Spiraese Juss. Calyx campanulate, imbricate, or 

 sometimes vahate in the bud: carpels 1-8, mostly 5, verticillate, 

 follicular or 2-valved in fruit: style terminal: seeds 1-8 or 10 in 

 each carpel , pendulous or ascending. 



15 HOLODISCUS Maxim. Act. Hort. Petrop. vi. 



Shrubs with alternate simple leaves without, stipules and nu- 

 merous flowers in loose panicles that terminate the short branch- 

 lets. Flowers perfect, disk wholly coherent. Calyx deeply 5- 

 cleft, persistent. Stamens numerous, perigynous. Carpels 5, op- 

 posite the calyx-lobes, distinct, shortly stipitate, with two pendu- 

 lous ovules, becoming woolly achenes. Stigma capitate, 2-lobed. 



H. discolor Maxim Adn. Spir. 150. Spirsea discolor Prsh. A diffuse 

 shrub 2-6 feet high with grayish-brown bark and short rigid pubescent 

 branches : leaves ovate, obtuse or acutish, cuneately narrowed at base to 

 a winged petiole, pinnately lobed or toothed above the middle, 6-18 lines 

 long, more or less silky-pubescent beneath, nearly smooth above: panicle 

 small, 1-4 inches long; more or less tomentose; calyx-lobes oblong, acute 

 or acutish ; petals obovate, obtuse, barely a line long, exceeding the calyx, 

 white, changing to tawny-white in age : achenes densely tomentose with 

 long white hairs. Common on bluffs and rocky banks, Brit. Columbia to 

 California and the Rocky Mountains, east of the Cascade range. 



H. ariaefolia. Spirsea arise/olid Smith. A rather large shrub 4-16 feet 

 high, with slender spreading or recurved striate branches : leaves ovate, 

 often abruptly contracted below to a short more or less margined petiole, 

 1-4 inches long, pinnately lobed, the mostly obtuse lobes often sharply 

 toothed, finely tomentose beneath, smooth above : panicles large and dif- 

 fuse, 4-8 inches long, tomentose, white, changing to tawny; petals oblong, 

 a line long, exceeding the ovate acute calyx-lobes; carpels pubescent with 

 long white hairs. Common in forests, Puget Sound to California, west of 

 the Cascade Mountains. 



