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A revision of the genus Mitella etc. 387 



of p. A. Rydberg. The flowers of this form do not, however, average any 

 larger than the species. 



Forma maxima. ~ Stems stout, 4—5 dm. high, leaves 8—10 cm. 

 long, 7.5 — 9 cm. wide, coarsely crenate-Iobed. 



Selkirk Mountains, British Columbia, E. L. Greene, Journey of 1890. 



10. Mitella pauciflora Rosend, n. sp. — Rhizoma repens, stoloniferus, 



tandem crassiusculus. Folia radicalia, cordata, 2—8 cm. longa, 2 — 7 cm. 

 lata, lobo medio obtuso aut acutiore, dentibus mucronatis bi-crenato-dentata, 

 capillis supra albis sparsis hirsuta, inferne ad vena similiter hirsuta aut 

 glabra; petioli crassiusculi, inferne vaginis stipularibus magnis fulvis in- 

 structi. Scapi aphylli, 9 — 22 cm. alti, sparsim hirsuti, primum adscen- 

 dentes, flexuosi, turn in fructificatione erecti; racemi 3 — 6 cm. longi, floribus 

 4 — 7, bracteis late triangularibus integris, pedicellis 3 — 6 mm. longis, inferne 

 minute bibracteolatis aut pedicello floris terminalis longiore et medio bibrac- 

 teolato. Flores brunneo-purpurei aperti, 9 — 10 mm. lati, axe valde com- 

 planato, sepalis late triangularibus, supra reflexis bi-trifidis, petalis 4 

 4.5 mm. longis itemque latis, atropurpureis, partibus 7 — 9 angustis pectinatim 

 pinnatifidis, partibus dorsalibus glanduloso-punctatis, disco valde 5-lobato, 

 staminibus 5, ob petala in discum dimidio inter petala ac stylos insertis, 

 filamentis brevissimis atque antheris reniformibus instructis; stylis ad 1 mm. 

 Jongis, cylindraceis aut supra nonnihil tenuioribus, stigmata integra minuta 

 ferentibus. Gapsulae apertae crateriformes, paucis seminibus fulvis macu- 

 lalis linealiter verrucosus instructae. 



In moist places, from the central to the southern part of the Island 

 Nippon. MiNASAKA, May 10, 1904, Shintaro Arimato, Type in Gray Her- 

 barium. Hondo, MiXASAKA, April 5, 1904. Chichibu, J. Matsumura, Sheet 

 No. 1395G0 in U. S. Natl. Herb. 



Note. This species is readily distinguished from M. japonica with which it has 

 l^een confused hy the less pointed leaves, few-flowered, flexuous, short scapes, larger 

 Matter flowers, and espcciaUy by the stamens being borne on the large 5-lobed disk 

 and by the small entire stigmas. It appears from a note following xMaximowicz' description 

 <^f M.japonica, that he may have had this species before liim in distinguishing two 

 fonns of the species. The two characters which he refers to, namely the shorter ter- 

 oiinal lobe of the leaf and shorter few-flowered racemes, mark our species. The more 

 I "^Portant floral characters, however, were overlooked. 



^^- MiteHa japonica (Sieb. et Zucc.) Miq. Ann. Mus. Bot. Lugd. Bat. Ill; 

 96. 1867. — Mitellopsis japonica Sieb. et Zucc. Fl. Jap. I: 190. 1835 to 

 **• -— Bhizome ascending, thickened; flowering stems erect, 2— 4.5 dm. 

 ^|8li, naked or sometimes with a single petioled leaf below the middle, 

 'hirsute and glandular-pubescent below, glandular-puberulent in the inflores- 

 cence; leaves cordale-ovate or ovate-oblong, 5— 9-lobed, terminal lobe long- 

 ^cuminate, doubly crenate-dentate^ with mucronate-lipped teeth, hirsute with 

 stiff scattered hairs above and along the veins beneath, 3.5—8 cm. long, 2.5 





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to 6 



cm. wide; petioles slender, 5— 15 cm. long, hirsute, wilh long relrorse 



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