8 



PLANT MATERIAL INTRODUCED 



101736 to 101797— Continued. 



dense corymbs of pale yellow flowers. 

 It is of garden origin. 



101740. Achillea herbarota All. 



A dwarf tufted aromatic alpine 

 perennial herb, native to the Alps of 

 Europe. The undivided leaves are ser- 

 rate, and the white flowers appear in 

 May and June. 



101741. Achillea kellereri C. F. 

 Ball. 



A hybrid (A. clypeolata X pseudo- 

 pcctinata), one of the best for the 

 rock garden, with long silvery leaves 

 and umbels of white flowers. 



101742. Achillea kolbiana Hort. 



A name for which a place of publi- 

 cation and a description have not been 

 found. 



101743. Achillea lewisii S. Arnott. 



A hybrid between A. rupestris and 

 A. tomentosa; one of the choicest of 

 the smaller hybrid yarrows. It has a 

 neat habit and attractive small flat 

 clusters of pale-yellow flower heads. 



101744. Achillea neilreichii Kern. 



A perennial with a creeping woody 

 rhizome and a stiff upright woolly 

 stem. The gray-green bipinnate leaves 

 are hairy on both sides, and the yellow 

 flowers are in small heads arranged in 

 a flat raceme. Native to eastern 

 Europe and closely related to A. 

 nobilis. 



101745. Achillea pseudo - pectinata 

 Janka. 



An erect herb with sessile pectinate- 

 pinnatifid leaves and yellow flowers in 

 lax clusters. Native to sandy places 

 in southeastern Europe. 



101746. Achillea rupestris Huter. 



A laxly cespitose perennial with 

 erect or ascending stems 3 to 9 inches 

 tall, small gray-green, glanduliferous, 

 spatulate, usually entire leaves less 

 than 1 inch long, and white flower 

 heads in small umbels. Native to 

 Italy. 



101747. Achillea speciosa Henckel. 



A perennial herb about 3 feet high, 

 with lanceolate sessile serrate leaves 

 and white flowers in terminal and 

 axillary corymbs. 



101748. Achillea wilczbkiana Vacc. 



A hybrid between A. herbarota am~ 

 bigua and A. nana, with fine silvery 

 gray, coarsely serrate leaves and long 

 panicles of white flowers. 



101749 to 101755. Alyssum spp. Brassi- 

 caceae. 



101749. Alyssum diffusum Tenore. 



An alpine plant, native to central 

 Europe, with a widely branched, her- 

 baceous stem, linear-lanceolate hairy 

 leaves, and flowers in simple racemes. 



101750. Alyssum halimifolium 

 Willd. 



A woody procumbent perennial with 

 cuneate, lanceolate or linear, obtuse 

 white-hairy leaves and white flowers. 

 Native to dry places in southern 

 Europe. 



101736 to 101797— Continued. 



101751. Alyssum rochelii Andrz. 



A laxly procumbent plant with hairy 

 lanceolate leaves and yellow flowers in 

 short dense racemes. It is native to 

 Germany and resembles A. umlfenianum 

 in flowers and fruits. 



101752. Alyssum saxatile L. 



Goldentuft. 



Variety citrinum. 



101753. Alyssum serpyllifolium 

 Desf. 



A woody perennial with numerous 

 erect slender stems, spatulate rigid 

 ash-colored leaves, and many small 

 yellow flowers in terminal corymbs. 

 Native to the Mediterranean region. 



101754. Alyssum spinosum L. 



Roseum. A rosy flowered form of 

 this European woody-stemmed dwarf 

 perennial, which usually has many 

 small white flowers on spiny branches 

 and lanceolate silvery leaves. 



101755. Alyssum wulfenianum Willd. 



An alpine perennial, hairy through- 

 out, with a short ascending stem, ob- 

 long-spatulate leaves, yellow flowers, 

 and pods twice as long asi A. monta- 

 num, which it resembles closely. Na- 

 tive to Germany. 



101756 to 101761. Anthemis sipp. As- 

 teraceae. Camomile. 



101756. Anthemis OarpIaTica (A. 

 styriaca Vest.) Willd. 



An alpine perennial from central 

 Europe which forms a tuft of short 

 leafy stems bearing solitary flower 

 heads with white rays and yellow 

 disks. 



For previous introduction see 95465. 



101757. Anthemis cupaniana Hort. 



A name for which a place of publi- 

 cation and a description have not been 

 found. 



101758. Anthemis haussknechtii 

 Boiss. and Reut. 



An annual daisylike plant with erect 

 hairy stems 2 inches or more high, 

 ovate-oblong tripinnatisect leaves, and 

 flowers with white rays and violet 

 centers. Native to Asia Minor. 



For previous introduction see 95461. 



101759. Anthemis rudolphiana 

 Adam. 



A cespitose perennial with simple 

 stems 3 to 5 inches high, silky pin- 

 natifid leaves, and yellow flower heads. 

 Similar to A. montama and native to 

 southeastern Europe. 



101760. Anthemis sancti-johannis 

 Stoy., Steff., and Turrill. 



An ornamental perennial herb 3 to 4 

 feet high, native to the mountain slopes 

 of Bulgaria at 4,000 feet altitude. The 

 few branched woolly stems have 2- to 

 3-times partly pinnate basal leaves 5 

 to 7 inches long, the tips of which are 

 armed with hard white acuminate 

 points. The stem leaves are similar 

 but gradually smaller, leaving bare 

 stems 3 to 7 inches below the flower 

 heads, which are solitary and 1 to 2 

 inches broad. The ray flowers and 



