Volume 12
A
- Acalypha
- Acalypha alopecuroidea
- Acalypha arvensis
- Acalypha australis
- Acalypha californica
- Acalypha chamaedrifolia
- Acalypha deamii
- Acalypha gracilens
- Acalypha monococca
- Acalypha monostachya
- Acalypha neomexicana
- Acalypha ostryifolia
- Acalypha phleoides
- Acalypha poiretii
- Acalypha radians
- Acalypha rhomboidea
- Acalypha setosa
A cont.
- Acalypha virginica
- Acalypha wilkesiana
- Adelia
- Adelia vaseyi
- Adolphia
- Adolphia californica
- Adolphia infesta
- Ampelopsis
- Ampelopsis aconitifolia
- Ampelopsis cordata
- Ampelopsis glandulosa
- Arceuthobium
- Arceuthobium americanum
- Arceuthobium campylopodum
- Arceuthobium campylopodum subsp. abietinum
- Arceuthobium campylopodum subsp. apachecum
- Arceuthobium campylopodum subsp. blumeri
A cont.
- Arceuthobium campylopodum subsp. californicum
- Arceuthobium campylopodum subsp. campylopodum
- Arceuthobium campylopodum subsp. cyanocarpum
- Arceuthobium campylopodum subsp. laricis
- Arceuthobium campylopodum subsp. littorum
- Arceuthobium campylopodum subsp. microcarpum
- Arceuthobium campylopodum subsp. monticola
- Arceuthobium campylopodum subsp. occidentale
- Arceuthobium campylopodum subsp. siskiyouense
- Arceuthobium campylopodum subsp. tsugense
- Arceuthobium divaricatum
- Arceuthobium douglasii
- Arceuthobium gillii
- Arceuthobium pusillum
- Arceuthobium vaginatum
- Arceuthobium vaginatum subsp. cryptopodum
- ... further results