Part 1, 1905] CRASSUIvACBAB 11 



flowers sessile or subsessile ; petals yellow, linear, about 3 mm. long, longer than the 

 stamens and smooth pistils ; styles erect ; scales none. 



Type locality : Gravelly soil in the Sacramento Valley, California. 

 Distribution : California. 



2. Sedella Congdoni (Eastw.) Britton & Rose, Bull. N. Y. 



Bot. Gard. 3: 45. 1903. 



Seduvi Congdoni Bastw. Proc. Cal. Acad. III. 1 : 135. 1898. 



Annual, simple or branched from near the base, 1-6 cm. high, the branches tortuous, 

 very slender, erect. Leaves alternate, very fleshy, ovate, obtuse, sessile, 2-4 mm. long, 

 1-2 mm. wide ; cyme few-flowered, sparingly forked ; flowers sessile ; calyx- segments 

 red-tipped ; petals ovate-lanceolate, yellow, red-tipped, acute ; carpels tuberculate near the 

 apex ; styles outwardly curved. 



Type locality : Grant's Springs, Mariposa County, California. 



Distribution : California. 



Illustration : Eastwood, loc. cit. pi. 11, f. 5. 



6. PACHYPHYTUM I,ink, Klotzsch & Otto, in Otto & Dietr. 



Allg. Gart. 9: 9. 1841. 



Caulescent and more or less branched ; leaves very thick, often terete. Flowers soli- 

 tary, or in secund racemes. Caly:x deeply lobed, the lobes appressed to the corolrla, ovate 

 to oblong, equal or unequal, shorter or longer than the corolla. Corolla deeply 5-7-parted, 

 not at all 5-angled ; petals erect below, spreading above. Stamens 10 ; the 5 alternating 

 with the petals free from the corolla ; the other 5 borne on the petals, each usually with a 

 pair of appendages at the base ; scales broad. Carpels 5, erect, free to the base. Styles 

 short. 



Type species, Pachyphytwm bracteosum Klotzsch. 



2. P. sodale. 



Stamens not appendaged at base. 1. P. amethystinum. 



Stamens appendaged at base. 

 I^eaves decidedly flattened. 

 Bracts small. 

 Bracts large. 



I^eaves broad, obtuse. 3. P. bracteosum. 



Leaves very narrow. 

 Leaves terete in section. 

 Calyx-lobes obtuse. 

 Calyx-lobes acute. 



Leaves green, hardly glaucous. 6. P. unijiorum. 



Leaves bluish, very glaucous. 7. P. aduncum. 



4. P. longifolium. 



5. P. brevifolium. 



1. Pachyphytum (?) amethystinum Rose, sp. nov. 



Shortly caulescent, perhaps 1 dm. high or more. Leaves scattered along the stem, 

 very thick but flattened, oblanceolate, obtuse, about 4 cm. long, glaucous and with a beauti- 

 ful amethyst tinge ; peduncles weak ; inflorescence somewhat compound, few-flowered ; 

 pedicels slender ; calyx small, 5-lobed, the lobes ovate, almost acute ; corolla bluish in 

 herbarium specimens, small, about 8 mm. long, cleft to below the middle but with a tube 

 longer than the calyx ; stamens not appendaged. 



Collected by J. N. Rose on^the top of the high Sierra^Madre west of Bolanos, Jalisco, Septem- 

 ber 15 to 17, 1897 {no. 2993). 



Mr. Rose sent back a flowering branch and a living plant of this species which he has had under 

 observation for seven years. It resembles Pachyphytum bracteosum. in habit and foliage, but its 

 flower-structure is so very different that it is referred to this genus with considerable hesitancy. 



2. Pachyphytum sodale (Berger) Rose. 



Echeveria sodalis Berger, Gartenflora 53 : 206. 1904. 



Caulescent, about 1 dm. high, leafy, glabrous throughout. Leaves about 9 cm. long, 

 spatulate, 3 cm. broad just below the apex, narrowed at base into a short nearly terete 

 petiole, green, not glaucous, obtuse; flowering stem rather weak, its leaves small; bracts 

 small, acute ; sepals ovate, acute ; corolla-lobes oblong, acute, the 5 stamens attached to them 

 bearing 2 acute appendages. 



